A. 1/25
B. 1/2
C. 4/13
D. 1/10
Explanation:
We have 1, 8, 27 and 64 as perfect cubes from 1 to 100.
Thus, the probability of picking a perfect cube is
4/100 = 1/25.
Related Mcqs:
- A box contains nine bulbs out of which 4 are defective. If four bulbs are chosen at random, find the probability that at least one bulb is good.
A. 6/63
B. 2/63
C. 125/126
D. 1/126 - A box contains nine bulbs out of which 4 are defective. If four bulbs are chosen at random, find the probability that all the four bulbs are defective.
A. 62/63
B. 125/126
C. 1/63
D. 1/126 - Out of 15 consecutive numbers, 2 are chosen at random. The probability that they are both odds or both primes is_________?
A. 10/17
B. 10/19
C. 46/105
D. Cannot be determined - In a party there are 5 couples. Out of them 5 people are chosen at random. Find the probability that there are at the least two couples?
A. 5/21
B. 5/14
C. 9/14
D. 16/21 - A large cube is formed from the material obtained by melting three smaller cubes of 3, 4 and 5 cm side. What is the ratio of the total surface areas of the smaller cubes and the large cube?
A. 2 : 1
B. 3 : 2
C. 25 : 18
D. 27 : 20 - The edge of three cubes of metal is 3 dm, 4 dm and 5 dm. They are melted and formed into a single cube. Find the edge of the new cube?
A. 3 dm
B. 4 dm
C. 5 dm
D. 6 dm - The edges of three iron cubes are 6cm; 8cm; 10cm respectively. A new cube was made by melting them. Find the edge of the new cube?
A. 8 cm
B. 12 cm
C. 14 cm
D. 10 cm - Three cubes of metal whose edges are 9, 12 and 15 cm respectively, are melted and one new cube is made. Find the edge of the new cube?
A. 21 cm
B. 19 cm
C. 32 cm
D. 18 cm - The ratio of the volumes of a cube to that of the sphere which will fit inside the cube is________?
A. 4:3
B. 4:2
C. 4:4
D. 6: π - The probability that a number selected at random from the first 50 natural numbers is a composite number is__________?
A. 21/25
B. 17/25
C. 4/25
D. 8/25
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