Test Series - w Quants

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Test Number 21/24

Q: Arrange the fractions 34,512,1316,1629,38 in their ascending order of their magnitude?
A. 3/8 < 5/12 < 16/29 < 13/16 < 3/4
B.  3/4 < 3/8 < 13/16 < 16/19 < 5/12
C. 3/8 < 5/12 < 16/29 < 3/4 < 13/16
D. 3/8 < 5/12 < 13/16 < 16/29 < 3/4
Solution: 3/8 < 5/12 < 16/29 < 3/4 < 13/16
Q: A child has three different kinds of chocolates costing  Rs.2, Rs.5, Rs.10.  He spends total Rs. 120 on the chocolates. what is the minimum possible number of chocolates he can buy, if there must be  atleast one chocolate of each kind?
A. 17
B. 15
C. 22
D. 19
Solution: Minimum number of chocolates are possible when he purchases maximum number of costliest chocolates.
Thus,          2 x 5 + 5 x 2 =Rs.20
Now Rs.100 must be spend on 10 chocolates as 100 = 10 x 10.
Thus minumum number of chocolates = 5 + 2 + 10 = 17
Q: Pencils, Pens and Exercise books in a shop are in the ratio of 10: 2 : 3. If there are 120 pencils, the number of exercise books in the shop is:
A. 46
B. 26
C. 36
D. 56
Solution: Let Pencils = 10x, Pens = 2x & Exercise books = 3x. Now, 10x = 120 hence x = 12. Number of exercise books = 3x = 36.
Q: A tailor has 37.5 metres of cloth and he has to make 8 pieces out of a metre of cloth. How many pieces can he make out this cloth ?
A. 360
B. 450
C. 300
D. 400
Solution: Length of  each piece = (1/8) m = 0.125 m
Required no of pieces = (37.5/0.125) = (375 * 100) / 125 = 300.
Q: The age of Ravi is twice the age of Prakash and three times the age of Kumar. If the age of Prakash is 24 years, then what will be the age of Kumar after 4 years ?
A. 20 years
B. 22 years
C. 16 years
D. 24 years
Solution: 20 years
Q: Ram is 20 years younger than Shyam. 5 years ago, the ratio of their age was 3:5. The sum of their present age is
A. 95 years
B. 90 years
C. 75 years
D. 80 years
Solution: 90 years
Q: 3/5 of my current age is the same as 5/6 of that of one of my cousin. My age ten ago will be his age four years hence. My current age is ___ years.
A. 55
B. 50
C. 45
D. 60
Solution: 50
Q: Rakesh’s present age is 36 years. If 12 years ago, Deepak’s age was one-fourth of Rakesh’s age, then after 27 years what will be the age (in years) of Deepak?
A. 46
B. 47
C. 45
D. 52
Solution: 45
Q: Six bells commence tolling together and toll at intervals of 2, 4, 6, 8 10 and 12 seconds respectively. In 30 minutes, how many times do they toll together ?
A. 4
B. 15
C. 16
D. 10
Solution: L.C.M. of 2, 4, 6, 8, 10, 12 is 120.
So, the bells will toll together after every 120 seconds(2 minutes).
In 30 minutes,they will together (30/2)+1=16 times

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