- A man takes 1(7/9) times as long to row a distance upstream as to row the same distance downstream. What is the speed of the boat in still water if it takes 3 hours to travel 38.4 downstream (in km/hr)?

A) 11

B) 22

C) 15

D) 10

E) 17

- The average monthly salary of employees , consisting of officers and workers of an organization is Rs. 3000. The average salary of an officer is Rs. 10,000 while that of a worker Rs. 2000/ month . If there are total 400 employees in the organization . Calculate the number of workers and officers separately.

A) 470,50

B) 200,70

C) 350,50

D) 240,65

E) 300,60

- Rohit ate in a coffee shop and got a membership discount of 30% on the original bill amount but he had to pay 10% as service tax and 8% service charge on the discounted bill amount. If Rohit paid Rs.4,743 ,which included a tip of Rs. 200, how much money did he give as service charge?

A) 350

B) 308

C) 210

D) 478

E) 316

- There is a one type of liquid contains 25% of milk ,the other contains 30% of milk .A milk container is filled with 6 parts of the first liquid and 4 parts of the second liquid .Find what is the percentage of milk in the mixture ?

A) 27%

B) 20%

C) 34%

D) 37%

E) 12%

- Ishita invested in 3 schemes P,Q and R the amounts in the ratio 2 : 3 : 4 resp. If the schemes offered interest at 20 p.c.p.a , 16 p.c.p.a and 15 p.c.p.a resp. Calculate respective ratio of amount after one year.

A) 12:75:63

B) 54:71:110

C) 78:45:94

D) 60:87:115

E) 44:54:73

- The number of copies circulated for a first – rank newspaper is 25,42,745 in the world. If the number of copies circulated for the second rank newspaper is less by 6,15,430 of the first – rank newspaper, how many copies of second rank newspaper are circulated in the world?

A) 20,10,100

B) 19,27,315

C) 18,50,000

D) 10,12,785

E) 11,24,578

- A bag contains 4 green and 6 red balls. Another bag B contains 3 green and 4 red balls. If one ball is drawn from each bag. Find the probability that both are green.

A) 7/48

B) 4/33

C) 7/45

D) 6/35

E) 2/35

- In a rectangular tank there are two garbage tanks , X and Y with lengths 12m and 15m resp. in a square field . If the total area of the square field excluding the rectangular tanks is 360 sq. m and the breadth of both the rectangular tanks is (1/3) of the side of the square field , what is the perimeter of the square field (in m)?

A) 63

B) 87

C) 75

D) 84

E) 96

- The ratio between the rates of travelling of P and Q is 3 : 4 and then P takes 10 min. more than the time taken by Q to reach a destination . If P had walked at double the speed , at what time he would have covered the distance ?

A) 20

B) 35

C) 10

D) 24

E) 15

- In how many different ways can the letters of the word “CANDIDATE” be arranged in such a way that the vowels always come together ?

A) 4578

B) 5100

C) 4320

D) 3245

E) 1245

Q. 4th seems incomplete @Banya mam

now check dear 🙂

yess thankyou mam :))

:))

Mam pls explain 4th??

25……………30

………x……….

6………………4

or

3……………….2 so x will be 27

go through the direct formula ..

3/2+6/5=27/10

27/10/10=27/100*100=27℅

alt method

milk in first part =25% of 6 =1.5l

milk in second part =30% of 4 =1.2l

so tot.milk =1.5+1.2=2.7l

tot.mix =10l => % =2.7/10 *100 =27%

6 part of 1st liquid- should be mam

yes .. ty 🙂

now it is updated ..

thanks

Ty az 🙂

Good qus

8/10 ty banya mam

ty

A bag contains 4 green and 6 red balls. Another bag B contains 3 green and 4 red balls. If one ball is drawn from each bag. Find the probability that both are green.

A) 7/48

B) 4/33

C) 7/45

D) 6/35

E) 2/35

View Answer

Option D

Solution:

Total balls in bag A = 4 + 6 = 10

Total balls in bag B = 7

Probability of green balls in bag A = 4/10

Probability of green balls in bag B = 3/7

Therefore ,

Total probability = (4/10)*(3/7) = 6/35

……………..

esme ye ku ni hau

let me know

1/2*4/10+1/2*3/7.

Each bags 1 green out kiya na

bag ki probabilty o1/2 hogi na

dono bag se nikala ja raha h green ball ko .isiliye dono baag ko consider karenge .. 1/2 se kisi ek hi bag ka probability niklega .

we use …no of favourable outcomes / total possible outcomes

so in first bag there are 4 green , we need green only so it will be 4 / 10 and in second one it is 3 / 7

multiply both we ll get 12 / 70 = 6/35

We multiply by 1/2 when we have to choose one bag out of two bags. But here we are choosing a green ball from both bags so we will not multiply by 1/2.

TY AZ

thank u

nice quiz ty az:)