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Placement Papers with Solutions

(#M40001411) SELF QUESTION Keep an EYE

A number is mistakenly divided by 5 instead of being multiplied by 5. Find the percentage change in the result due t this mistake.

(a)96% (b)95% (c)2400% (d)200%

suneil (14 years ago)

Solved Divyanand Read Solution (6)

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(#M40001409) SELF QUESTION Keep an EYE

Three companies working independently are saving 20%, 25% and 35% of their earnings. If these companies combine and work what would be the net percentage of savings?

Solution

Since earnings of the companies are not given so two cases arise
1) earnings are same
then (0.2x + 0.25x + 0.35x)/3x = (0.8/3)x
saving = 80/3 %
2) earnings are different
data are insufficient

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suneil (14 years ago)

Solved

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(#M40001405) SELF QUESTION Keep an EYE

ago, when Mr. Waugh was asked as to whom among Steve and Mark is elder, he said, “ In two years from now Steve will be twice as old as he was two years ago and in three years from now Mark will be three times as old as he was three years ago. How old is Mark and Steve and who among the two is elder?
(a)Steve 31 years (b)Mark 37 years (c)Both are 33 years (d)cannot say

suneil (14 years ago)

Unsolved

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(#M40001404) SELF QUESTION Keep an EYE

The average of squares of first 11 consecutive even numbers is:
(a)184 (b)148 (c)186 (d)174

suneil (14 years ago)

Solved Pargat Pal Singh Read Solution (2)

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(#M40001403) SELF QUESTION Keep an EYE

The average weight of three men A, B and C is 84 Kg. The average weight becomes 80 Kg when D joins them. If E whose weight is 3 Kg more than D joins the group replacing A, then the average weight of B, C, D and E becomes 79 Kg. The weight of A is:
(a)65kg (b)70kg (c)75kg (d)80kg

suneil (14 years ago)

Solved Pargat Pal Singh Read Solution (4)

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(#M40001402) SELF QUESTION Keep an EYE

The average age of father and his two sons is 27 years. The difference in age between the two sons is 4 years and five years ago the average age of the two sons was 12 years. What is the present age of the father?
(a)34years(b)47years(c)64years(d)27years

suneil (14 years ago)

Solved Pargat Pal Singh Read Solution (2)

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(#M40001398) SELF QUESTION Keep an EYE

The total expense of a boarding house is partly fixed and partly variable with the number of boarders. When the number of boarders is 25, then the charge is Rs 70 per head and the same is Rs 60 when the number of boarders is 50. What would be the charge per head if there are 100 boarders?

Solution

According to the given condition x + (y/25) = 70 , x + (y/50) = 60
on solving we get y = 500 and x = 50
fixed charge = 50 and remaining 500 rupee of income will be distributed among all the boarders so in last case charge = 50 + (500/100) = 50 + 5 = 55


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suneil (14 years ago)

Solved Read Solution (1)

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(#M40001395) SELF QUESTION Keep an EYE

The ratio of incomes of C and D is 3 : 4 and their expenditures is 4 : 5. If the savings of C is one fourth of his income then what is the ratio of savings of C and D?

Solution

According to the given condition
3x - 4y = (1/4)3x
=> (3/4)3x = 4y
=> 9x = 16y
=> x/y = 16/9
so ratio of savings = (3x - 4y)/(4x - 5y) = (3*16 - 4*9)/(4*16 - 5*9) = 12/19



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suneil (14 years ago)

Solved Read Solution (1)

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(#M40001394) MCA QUESTION time and work Keep an EYE

twenty men can do a piece of work in 30 days. when should 5 men leave the work so that it may be finished in 35 days....

Solution

Let 5 men leave the work after x days, then according to the given condition
20*x + 15*(35-x) = 600
on solving x = 15

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Asked In MCA Prashant Chaudhary (14 years ago)

Solved

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(#M40001393) SELF QUESTION series Keep an EYE

3,14,39,_?

Solution

Ans: 84
Formula : n^3 + n^2 + n
Soln : 1^3+1^2+1 = 3
2^3+2^2+2 = 8+4+2 = 14
3^3+3^2+3 = 27+9+3 = 39
4^3+4^2+4 = 64+16+4 = 84
This is correct solution and is given by Karthik Pandiyan

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Subhradip Biswas (14 years ago)

Solved Read Solution (3)

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