**(1) Which number cannot represent a probability?A. 2/3B. 1.5C. 15%D. 0.7**

**Solution:**

B. 1.5**Explanation:**

As probability of any event lies between 0 and 1, the answer is option B = 1.5, which is greater than 1.

**(2) A die is rolled. What is the probability that the number appearing on upper face is less than 3?A. 1/6B. 1/3C. 1/2D. 0**

**Solution:**

B. 1/3**Explanation:**

Favorable outcomes = (1, 2) = 2

Total number of outcomes=6

Probability that the number appearing on upper face is less than 3 = 2/6 = 1/3

**(3) What is the probability of the event that a number chosen from 1 to 100 is a prime number?A. 1/5B. 6/25C. 1/4D. 13/50**

**Solution:**

B. 6/25**Explanation:**

Favorable outcomes=24

Total number of outcomes=100

Probability that the number a number chosen from 1 to 100 is a prime number = 24/100 = 6/25

**(4) There are 40 cards in a bag. Each bears a number from 1 to 40. One card is drawn at random. What is the probability that the card bears a number which is a multiple of 5?A. 1/5B. 3/5C. 4/5D. 1/3**

**Solution:**

A. 1/5**Explanation:**

Favorable outcomes=8

Total number of outcomes=40

Probability that the card bears a number which is a multiple of 5 = 8/40 = 1/5

**(5) If n(A) = 2, P(A) = 1/5, then n(S) =?A. 10B. 5/2C. 2/5D. 1/3**

**Solution:**

A. 10**Explanation:**

Probability, P(A) = n (A)/ n (s)

⇒ 1/5 = 2/ n(s)

n(S)=10