Which of the following has the most number of divisors?
Which of the following has the most number of divisors?
A. 99
B. 101
C. 176
D. 182
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If the length and width of a rectangular grand are each increased by 20% then what would be the percent increase in the area of the garden?
If the length and width of a rectangular grand are each increased by 20% then what would be the percent increase in the area of the garden?A. 20%
B. 24%
C. 36%
D. 44%Let length = x metres and breadth = y metres , then area =(xy)m2
New length = 120/100x (6x/5)m
New breadth = 120/100 y = 6y/5m
New area (6x/5 x 6y/5)m2 = (36/25 xy)m2
Increase in area = (36/25xy – xy)m2 = (11/25 xy)m2
Increase % = (11/25 xy x 1/xy x 100)% = 44%A swimming bath is 24 m long and 15 m broad. When a number of men drive into the bath. The height of water rises by 1cm. If the average volume of water displaced by each man be 0.1m3 how many mean are there in the both?
A swimming bath is 24 m long and 15 m broad. When a number of men drive into the bath. The height of water rises by 1cm. If the average volume of water displaced by each man be 0.1m3 how many mean are there in the both?A. 32
B. 36
C. 42
D. 46The surface of a cube is 24sq cm. Find its volume?
The surface of a cube is 24sq cm. Find its volume?A. 8 cc
B. 16 cc
C. 32 cc
D. 64 cc6a2 = 24
a = 2 => a3 = 8ccA coin is tossed live times. What is the probability that there is at the least one tail?
A coin is tossed live times. What is the probability that there is at the least one tail?A. 31/32
B. 1/16
C. 1/2
D. 1/32
Explanation:
Let P(T) be the probability of getting least one tail when the coin is tossed five times.
= There is not even a single tail.
i.e. all the outcomes are heads.
= 1/32 ; P(T) = 1 – 1/32 = 31/32Two pipes P and Q can fill a cistern in 12 and 15 minutes respectively. Both are opened together, but at the end of 3 minutes the first is turned off. How much longer will the cistern take to fill?
Two pipes P and Q can fill a cistern in 12 and 15 minutes respectively. Both are opened together, but at the end of 3 minutes the first is turned off. How much longer will the cistern take to fill?A. 9 1/4 min
B. 11 1/4 min
C. 7 1/4 min
D. 8 1/2 min
Explanation:
3/12 + x/15 = 1
x= 11 1/4Find the area of a parallelogram with base 24 cm and height 16 cm.
Find the area of a parallelogram with base 24 cm and height 16 cm.A. 262 cm2
B. 384 cm2
C. 192 cm2
D. 131 cm2
Area of a parallelogram = base * height = 24 * 16 = 384 cm2