1)Out of 135 applicants for a post, 60 are graduates and 80 have experience. What is the ratio of minimum to maximum number
of graduates having experience?
A) 12:1
B) 5:1
C) 1:5
D) 1:12
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Answer D)1:12
Given total applicants = 135
Given graduates are G=60
Otherthan graduates=135-60 = 75
Given experienced candidates = 80
1) For maximum number of graduates have experience
Total graduates to have experience = 60
2) For minimum number of graduates have experience
Remaining after taking other than graduates in experience= 80-75 =5
2)A Child has 1200 five rupee coins. He wants to place them in such a way that the number of rows and the number of columns remains the same. What is the minimum number of coins that he needs more for this purpose?
A) 125
B) 96
C) 35
D) 25
Click to View Answer
Answer D) 25
We know that, to be in the form that the number of rows and the number of columns to be equal the number should be a perfect square ( [a^2] ).
Given number is 1200
The perfect number which is above and near to 1200 is 1225 which is 35×35.
so,The minimum number of coins he need is 25.
3) 3years ago, the average of a family of 5 members was 17 years. A baby having been born, the average age of the family is the same today. The present age of the baby is?
A)5 years
B)2 years
C)1 year
D)4 years
E)None of these
Click to View Answer
Answer B)2years
Explanation – Total age of 5 members, 3 years ago = (17 x 5) years = 85 years
Total age of 5 members now = (85 + 3 x 5) years = 100 years
Total age of 6 members now = (17 x 6) years = 102 years
Age of the baby = (102 – 100) years = 2 years
4)Of the four numbers, the first is twice the second, the second is one-third of the third and the third is 5 times the fourth. The average of the numbers is 24.75. The largest of these numbers is?
A)45
B)25
C)30
D)45
E)None of these
Click to View Answer
Answer D45)
Explanation – Let the fourth number be a
then hen, third number = 5a, second number= 5a/3 and first=10a/3
a+ 5a+ 5a/3 + 10/3 = 24.75 x 4
so,a=9
So, the numbers are 9, 45, 15 and 30
5)The average age of students of a class is 15.8 years. The average age of boys in the class is 16.4 years and that of the girls is 15.4 years. The ratio of the number of boys to the number of girls in the class is?
A)1 : 4
B)2 : 3
C)3 : 4
D)4 : 2
E)None of these
Click to View Answer
Answer B)2 : 3
Let the ratio be k:1
Then, k x 16.4 + 1 x 15.4 = (k + 1) x 15.8
(16.4 – 15.8) k = (15.8 – 15.4)
k=2/3
6)Total number of luxury watches sold by stores C and H together is by what percent less than total number of watches (sports watches and luxury watches) sold by stores F and H together?
A) 29 5/6
B) 27 3/7
C) 31 3/5
D) 28 4/7
E) 26 5/9
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Answer D)28 4/7
Total number of luxury watches sold by stores C and H together = Total number of (luxury + sports) watches sold by stores C and H together – Total number of sports watches sold by stores C and H together= (14 + 9)% of 56000 – (7 +.12)% of 32000 = 12880 – 6080 = 6800
Total number of sport and luxury watches sold by stores F and H together = (8 + 9)% of 56000
= 17% of 56000 = 9520
Therefore, required percentage =(9520- 6800)/9520x 100%=28 4/7%
7)Number of watches (sports watches and luxury watches) sold by store D is by what percent more than total number of sports watches sold by stores C, F and G together ?
A) 22.5
B) 25
C) 27.5
D) 35
E) 30
Click to View Answer
Answer B)25
Number of watches (sports and luxury watches) sold by store ID = 15% of 56000 = 8400
Number of sports watches sold by stores C, F and G together = (7 + 8 + 6)% of 32000 = 21% of 32000 = 6720
Therefore, required percentage
(8400 – 6720)/6720 x 100% = 1680/6720 x 100% = 25
8)What is the respective ratio between total number of sports watches sold by stores A and B together and total number of watches (sports and luxury) sold by stores C and F together?
A) 64 : 77
B) 48 : 61
C) 56 : 77
D) 64 : 81
E) 48 : 73
Click to View Answer
Answer D)64:77
Total number of sports watches sold by stores A and B together
= (16 + 16) % of 32000 = 32% of 32000 = 10240
Total number of watches (sports and luxury) sold by stores C and F together = (14 + 8) % of 56000 = 22% of 56000 = 12320
Therefore, required ratio = 10240 : 12320 = 64 : 77
9)What is the average number of luxury watches sold by stores A,D, E, F and H together?
A)3152
B)3296
C)3548
D)3186
E)3428
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Answer B)3296
10)If the number of watches sold by stores A, D, and E increased by 10%, 35%, and 15% respectively from 2004 to 2005 what was the total number of luxury watches sold by these three stores in 2005?
A) 16172
B) 14966
C) 15848
D) 15964
E) 16392
Click to View Answer
Answer D)15964
