# Discussion Zone – 22 December 2016

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• Quantitative Aptitude
• Reasoning
• English
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• Current Awareness
• Computer

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## 187 Thoughts to “Discussion Zone – 22 December 2016”

1. Purvi

gud eve frnds

1. Suraj

gud evening

2. Suraj

2. In an examination a student who gets 20% of the maximum marks fails by 5 marks. Another student who scores 30% of the maximum marks gets 20 marks more than the pass marks. The necessary percentage required for passing is
A) 32%
B) 23%
C) 22%
D) 20%

1. " Born To Win "

22

2. Suraj

C) 22%

3. Suraj

A contactor undertakes to make a road in 40 days and employs 25 men. After 24 days, he finds that only one-third of the road is made. How many extra men should he employ so that he is able to complete the work 4 days earlier?
A) 100
B) 60
C) 75
D) 55

1. Purvi

cc

2. Suraj

C)75

4. Suraj

A retailer buys 40 pens at the marked price of 36 pens. If he sells these pens giving a discount of 1%, what is the profit percent?
A. 9%
B. 10%
C. 11%
D. 12%

1. ambika

bbb

1. kumkum ahuja

solution bhi dena sath me mera maths week h

1. GRAVITAS~HANKER~NITROUS OXIDE

O-O

2. Suraj

B. 10%
Explanation:
Let MP of 1 pen = Re 1
CP of 40 pens = MP of 36 pens = Rs 36
MP of 40 pens = Rs 40
So after discount of 1%, SP of 40 pens = 99/100 * 40 = Rs 39.6
So profit% = (39.6 – 36) / 36 * 100 = 10%

3. ambika

cp=36 sp = 39.6
p% = 3.6/26*100=10%

4. Purvi

bbb

5. Suraj

8. A can cultivate 2/5th of the land in 6 days and B can cultivate 1/3rd of the same land in 10 days. Working together A and B can cultivate 4/5th of the land in how many days?
A) 4 days
B) 5 days
C) 8 days
D) 10 days

1. Purvi

ccc

2. ambika

ddd
15*30/45=10 days

1. ambika

4/5 =8 days

3. Suraj

C) 8 days
Explanation:
A can cultivate 2/5th of the land in 6 days, so whole land in 5/2 * 6 = 15 days.
B can cultivate 1/3th of the land in 10 days, so whole land in 3/1 * 10 = 30 days.
A and B together can complete whole land in 15*30/(15+30) = 10 days.
So 4/5th land in 4/5 * 10 = 8 days

6. Suraj

A does half as much work as B in one sixth of the time. If together they take 10 days to complete a work, how many days shall B take to do it alone?
A) 70
B) 30
C) 40
D) 50

1. Purvi

cc

2. Suraj

C) 40
Explanation:
Let B do whole work in ‘x’ days.
A does ½ work in x/6 days, so whole work in 2x/6 = x/3 days
Together they take 10 days, so x * x/3 / (x+x/3) = 10
Solve, x = 40 days

7. Suraj

Oranges are bought at 7 for Rs 3. At what rate per hundred must they be sold to gain 33%?
A) Rs 56
B) Rs 57
C) Rs 58
D) Rs 60

1. " Born To Win "

57?

2. ambika

bbb

3. Suraj

B) Rs 57

7 for Rs 3, so for 1 Re oranges are 7/3
So for Re 1 to gain 33%, number of oranges sold = 7/3 * 100/(100+33) = 100/57
So per hundred oranges = 57 Rs

4. Purvi

2222

5. ambika

100*3*133/7*100=57

8. Suraj

10. The selling price of an article is marked at 20% above the cost price. At the time of selling, he allows a discount of 8%. His profit percent is:
A. 20%
B. 10.4%
C. 8.6%
D. 12%

1. " Born To Win "

bb

2. Purvi

222b

3. ambika

bbb

4. Suraj

B. 10.4%
Explanation:
Use M.P. = (100 + p%)/(100 – d%) * C.P.
MP is 20% above CP.
120/100 C.P. = (100 + p%)/(100 – 8) * C.P.

solveing we get
p = 10.4%

5. ambika

100*6/5*92/100=110.4

9. Suraj

The ratio of income of A and B is 2:3. The sum of their expenditure is Rs.8000 and the amount of savings of A is equal to the amount of expenditure of B.What is the their ratio of sum of income to their sum of savings?
A.5:3
B.3:2
C.4:3
D.3:1
E.None of these

1. ambika

sol??? mujhe to nhi ata ye

2. Suraj

Explanation :
2I-E + E = 8000
I = 4000
Sum of their Income = 5*I = 5*4000 = 20,000
Sum of their Savings = 20000-8000 = 12,000
20000:12000 = 5:3

1. Purvi

2I-E + E = 8000
line samaj nhi aayi

1. ambika

2i = sum of income
sum of saving of one is = sum of expenditure of other so 2e taken

3. GRAVITAS~HANKER~NITROUS OXIDE

2…………………………………….3.
X…………………………………….Y……….8000
Y……………………………………..Z
2X-Y====-8000-Y
X===4000

10. Suraj

There are two numbers. When 25% of the first number is added to the second number, the resultant number is 1.5times th first number.What is the ratio of 1st number to the 2nd number ?
A.3:5
B.5:4
C.4:5
D.2:3
E.None of these

1. ambika

ccc

2. " Born To Win "

cc

3. Suraj

Explanation :
A+25/100 + B = 1.5A
A/4 + B = 15A/10
10A+40B/40 =60A/40
10A+40B = 60A
50A = 40B
A/B = 4/5

4. Purvi

3333

11. Suraj

An HR Company employs 4800 persons, out of which 45 percent are males and 60 percent of the males are either 25 years or older. How many males are employed in that HR Company who are younger than 25 years?
1) 2640
2) 2160
3) 1296
4) 864

1. ambika

444

2. Purvi

444

3. Suraj

864

12. Suraj

7x^2 – 43x + 60 = 0;
2y^2 – 17y + 36 = 0

A. x ≤ y
B. x ≥ y
C. x > y
D. No relationship

1. " Born To Win "

aa

1. " Born To Win "

areyr

2. ambika

ddd

1. ambika

galt ho gya :((

2. Purvi

x = 15/7 , 4
y = 9/2 , 4
aa rha hai na

1. ambika

hmm mene 7 ko 2 le liya tha so wrong ho gya mera

3. " Born To Win "

kuch dikh nhi rha mujhe ???

4. Purvi

111

5. Suraj

A. x ≤ y

Explanation:
7×2 – 43x + 60 = 0
7×2 – 28x – 15x + 60 =0
7(x-4) – 15(x-4) = 0
x = 4, 15/7
2y2 – 17y + 36 = 0
2y2 – 8y – 9y + 36 = 0
2(y-4) – 9(y-4) = 0
y = 4, 9/2

13. Suraj

In an examination, 30% of the total students failed in Hindi, 45% failed in English and 20% failed in both the subjects. Find the percentage of those who passed in both the subjects.
1) 35.7%
2) 35%
3) 40%
4) 45%

1. " Born To Win "

45

2. Nandita

45%

3. Purvi

kese sol karete yese ques
plz tips do

1. ambika

mujhe bhi ni ata ye but ese shayd 45+20+30-40=55
100-55=45%

1. Purvi

ty 🙂

2. Suraj

failed in both= 20%
means fail in only hindi=30-20=10%
fail in only eng =45-20=25%
means fail in atleast 1 subject =20+10+25=55%
remaining students are passed in both subject=100-55=45%

1. Purvi

ty

3. ^^^Jaga^^^....

100-(x+y-z)

4. Suraj

45%

1. ambika

pre in???

1. " Born To Win "

6/11?

2. ambika

bbb

3. Purvi

2222

4. ambika

total……………………………..60
a………………………………..2
b……………………………..3
c……………………………….6
in 3 min. a……………….6
b………………………..9
c……………………….18
so r=18/33=6/11

1. ^^^Jaga^^^....

wahh…

1. ambika

:)) dekha mujhe thoda boht maths ata hai :))

1. ^^^Jaga^^^....

tum cutoff badhati ho bas 😛

2. ambika

:))

14. Suraj

If 12 men and 16 boys can do a piece of work in 5 days; 13 men and 24 boys can do it in 4 days, then the ratio of the daily work done by a man to that of a boy is
A. 1 : 2
B. 2 : 1
C. 3 : 2
D. 5 : 4

1. Purvi

bbb

1. Suraj

provide the sol.

2. Suraj

2:1

1. ambika

sol???

3. Purvi

(12m+16b)*5 = (13m+24b)*4
m = 2b

1. Purvi

cc

1. ^^^Jaga^^^....

solution??

1. Purvi

2/7 9/16
1/2
7 8

15. Suraj

8. A car owner buys petrol at Rs 4, Rs 5 and Rs 6 per litre for three successive years. What approximately is the average cost per litre of petrol if he spends Rs 2400 each year?
A. Rs 4.86
B. Rs 4
C. Rs 5
D. Rs 6

1. ambika

ye kaise hoga ??????

2. Purvi

aa?

3. " Born To Win "

aaa

4. Suraj

avg cost = total amount spend on petrol/ total quantity of petrol
petrol quantity in year 1=2400/4=600 L
Q2=2400/5=480L
Q3=2400/6=400L
avg cost=3*2400/(600+480+400)=4.86

5. " Born To Win "

720/148

16. Suraj

A boat can travel with a speed of 13 km/hr in still water. If the speed of the stream is 4 km/hr, find the time taken by the boat to go 68 km downstream.
A. 2 hours
B. 4 hours
C. 3 hours
D. 5 hours

1. ambika

bbb

2. " Born To Win "

bb

3. Purvi

22

4. Suraj

4 hours

5. ^^^Jaga^^^....

bbbbbbbbbbbb

17. Suraj

A shopkeeper sells an item at 20% profit but uses a weight of 1200 gm instead of 1 kg. Find hid net profit/loss %.
A. 15%
B. 12.5%
C. 10%
D. 0%

1. ambika

ddd

1. Purvi

sol

1. ambika

sp=120%
cp=120%
profit=0

2. Suraj

0%

3. GRAVITAS~HANKER~NITROUS OXIDE

NO PROFIT NO LOSS

18. Suraj

By selling an item at 7/10th of the actual selling price, a trader makes a profit of 20%. If he sells the product at 20% less than the actual selling price, then what will be the profit or loss %?
A. 30%
B. 20%
C. 37 1/7%
D. 33 1/3%

1. ambika

ccc

2. Purvi

333

3. Suraj

C) 37 1/7%

4. GRAVITAS~HANKER~NITROUS OXIDE

700…………….840
700…………….1200 ORIGNAL
960-700====260/7
37//7 ANS

19. Suraj

Focus more on that questions which you are unable to solve in one attempt.

20. Suraj

#Error-Detection

1. ambika

:)))

21. Suraj

He is serving (A) / under me for (B) / the last several years but (C) / I cannot claim even today that I have understood him thoroughly.(D) / No error(E)

1. ambika

aaaa

2. ^^^Jaga^^^....

bbbb

1. ambika

he has been

3. Purvi

1111

4. Suraj

A) he has been serving….
several years se kaam raha hai abhi tak …isliye has been.. present continous

22. Suraj

She never (A) / minds the children (B) / to play (C) / in the garden. (D) / No error(E)

1. ambika

cccc

2. Purvi

ne

3. Suraj

C) to play=>playing

23. Suraj

Do not (A) / get down the bus (B) / till it (C) / will stop. (D) / No error.(E)

1. ambika

ddd

2. ^^^Jaga^^^....

delete will

1. ambika

and change stop to stops

3. Suraj

D) will stop=>stops

24. Suraj

He insisted (A) / on (B) / to go (C) / there. (D) / No error.(E)

1. ambika

remove on??

2. ambika

ya going??

3. Purvi

222

4. Suraj

C) to go=>going

25. Suraj

I will not move (A) / from here (B) / until (C) / you will get back.(D) / No error.(E)

1. ambika

shall

2. ambika

you get back

3. ambika

i ke saath will aa sakta hai for determination??

4. Suraj

D) remove will

26. Suraj

Thats it for today…
Utilize this platform to the fullest, by getting ur doubts cleared and solving various questions.
Unique questions framed by Shubhra Mam will be useful for all exams..
Gudnyt

1. ambika

thankuu good night :))

2. Purvi

thanku sir
gud nt

3. " Born To Win "

thnx

27. Purvi

abhi or koi quiz hogi kya

1. Suraj

u can start 😀

1. Purvi

health issue
so i cant

1. Suraj

oo ok ok

28. " Born To Win "

What is the marked price of the article?
Statement I →The article is sold at 15% discount on market price still making a gain of 16 Rs
Statement II →The difference between the marked price and selling price is 50% more than the difference between Selling price and cost price.

1. Purvi

ans ?

1. " Born To Win "

apka ans ?

1. Purvi

mujhe samaj he nhi aara to mera skip

2. GRAVITAS~HANKER~NITROUS OXIDE

BOTH

1. Purvi

gud eve sir

1. GRAVITAS~HANKER~NITROUS OXIDE

GE EVE

2. " Born To Win "

how

1. GRAVITAS~HANKER~NITROUS OXIDE

ANS KHA HAI WESSE ??

2. GRAVITAS~HANKER~NITROUS OXIDE

?????
BTA DO KK SRY 🙁

1. " Born To Win "

ans nhi pta

3. GRAVITAS~HANKER~NITROUS OXIDE

BOTH ??

4. ^^^Jaga^^^....

both needed

1. " Born To Win "

how.

5. ^^^Jaga^^^....

let mp=x
15% discount on mp
so sp=x*75/100=3x/4
cp=3x/4-16

in stmt II, mp-sp=(sp-cp)+50
x-3x/4=(3x/4-(3x/4-16))+50
solve this /
correct???

1. " Born To Win "

solve aap hi krke do

1. ^^^Jaga^^^....

66

1. " Born To Win "

15% hna ?

2. ^^^Jaga^^^....

sry sry 136 ans 🙂

3. " Born To Win "

aapne 10% kyu liya

4. ^^^Jaga^^^....

mai galti se kar diya…but method ye hi hai…

5. " Born To Win "

thanx..

6. " Born To Win "

15% discount

7. ^^^Jaga^^^....

ohoo..hn wese hi hoga…mai 75 ka kar diya

2. ^^^Jaga^^^....

method yehi hai..but solution galat hai mera

6. Suraj

neither hona chahye

1. ^^^Jaga^^^....

sir kese?

1. Suraj

statement 1 se suppose
MP=100x
SP= 85x
CP=85x-16
2nd se

MP-CP=3/2(SP-CP)
15x=3/2 16
find x and get MP
so both

1. ^^^Jaga^^^....

yes sir,,,mera 2nd stmt ka equation galat tha,, sry

thank u

2. Suraj

wait maine ek line miss kr di

3. Suraj

both hoga

1. ^^^Jaga^^^....

both hoga????

29. Purvi

gud night frnds

1. ^^^Jaga^^^....

gnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 🙂

30. " Born To Win "

After replacing an old member by a new member, it was found that the average age of four members of a family is the
same as it was 3 year ago. What is the difference between the ages of the replaced and the new member ?

31. After I originally commented I clicked the -Notify me when new comments are added- checkbox and now every time a remark is added I get 4 emails with the identical comment. Is there any manner you may take away me from that service? Thanks!

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such info much. I used to be looking for this particular information for a long time.
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