4 men or 8 women can do a work in 15 days, then in how many days 6 men and 12 women can complete the whole work ?
4 days
3 days
5 days
6 days
8 days
Option C Efficiency ratio of men and women = 2 : 1 total work = 4 * 2 * 15 = 120 days required = 120/ 6 * 2 + 12 * 1 = 5 days
If simple interest earned on a certain sum of money at certain rate of interest after 5 years is 2/7 times the amount earned on the same sum of money after 5 years, then what is the rate interest ?
10%
6%
12%
8%
15%
Option D Let amount = 7x SI = 2x P = 7x – 2x = 5x rate of interest = 2x * 100/5x * 5 = 8%
Average of 12 numbers is 60. If average of first six and last four numbers is 70 and 50 respectively and ratio of seventh and eighth number is 3 : 2, then find the 8th number ?
50
40
80
70
75
Option B Total 12 numbers = 12 * 60 = 720 total of first six numbers = 70 * 6 = 420 total of last four numbers = 50 * 4 = 200 8th number = (720 – 420 + 200) 2/5 = 100 * 2/5 = 40
Sanjay saves 25% of his monthly income. If his monthly expenditure is increased by 40% while his monthly savings remain same, then find the percentage increase in his monthly income ?
36%
40%
28%
30%
40%
Option D Let income of Sanjay = 100x savings = 100x * 25/100 = 25x expenditure = 100x – 25x = 75x increased expenditure = 75x * 140/100 = 105x income = 105x + 25x = 130x % increased income = 130x – 100x/100 * 100 = 30%
490 ml of mixture contains milk and water in the ratio of 4 : 3 respectively. If 140 ml of mixture is taken out and 50 ml of water is added, then what is the ratio of milk to water in final mixture ?
2 : 3
4 : 5
3 : 2
1 : 1
2 : 5
Option D Quantity of milk = 490 * 4/7 = 280 quantity of water = 490 * 3/7 = 210 140 ml of mixture is taken out, (280 – 140 * 4/7)/(210 – 140 * 3/7 + 50) = 200/200 = 1 : 1
Directions : What will come in place of questions marks (?) in the following given number series ? 30, 62, 126, 254, 510, ?
920
1022
648
840
1220
Option B The series is (*2 + 2), (*2 + 2), (*2 + 2)…
?, 9, 25, 61, 125, 225
5
4
6
8
2
Option A The series is (+2^2), (+4^2), (+6^2), (+8^2), (+10^2)
35, 42, 56, 77, ?, 140
135
140
130
105
112
Option D The series is (+7), (+14), (+21), (+28), (+35)
8, 16, 48, 192, 960, ?
4820
5760
1920
3200
9600
Option B The series is (*2), (*3), (*4), (*5), (*6)
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An outstanding share! I have just forwarded this onto a colleague who
was doing a little research on this. And he in fact ordered
me lunch simply because I stumbled upon it for him… lol.
So let me reword this…. Thank YOU for the
meal!! But yeah, thanks for spending some time
to talk about this issue here on your internet site.
Greetings! I know this is kinda off topic but I was wondering
which blog platform are you using for this website?
I’m getting fed up of WordPress because I’ve had problems with hackers and I’m looking at options
for another platform. I would be great if you could point me in the
direction of a good platform.