13Find the probability that a number selected at random from 1 to 40 is divisible by either 4 or 6.

A1/10

B5/10

C2/10

D3/10

14A box contain 14 apples out of which 5 are spoilt. If 5 apples are chosen at random, find the probability that all the 5 apples are spoilt.

A1/12225

B1/12852

C1/18018

D1/12552

15A box contain 12 batteries out of which 7 are defective. 3 batteries are drawn from box at random. What is the probability that there is at least one defective battery?

A24/44

B22/44

C21/22

D25/44

168 girls sit in a row randomly. What is the probability that 4 particular girls always sit together?

A1/14

B5/14

C7/14

D4/14

17The probability that A speaks truth is 5/12 and the probability that B speak truth is 5/14. What is the probability that both speak falsehood while making a statement?

A2/8

B1/8

C3/8

D5/8

18Bag $P$ contain $6$ Red marbles and $5$ blue marbles while Bag $Q$ contain $5$ Red marbles and $6$ blue marbles. Two marbles, one each from the two bags are drawn at random. What is the probability that both the marbles are of same colour?

A9/121

B95/121

C60/121

D98/121

A1/10

B5/10

C2/10

D3/10

14A box contain 14 apples out of which 5 are spoilt. If 5 apples are chosen at random, find the probability that all the 5 apples are spoilt.

A1/12225

B1/12852

C1/18018

D1/12552

15A box contain 12 batteries out of which 7 are defective. 3 batteries are drawn from box at random. What is the probability that there is at least one defective battery?

A24/44

B22/44

C21/22

D25/44

168 girls sit in a row randomly. What is the probability that 4 particular girls always sit together?

A1/14

B5/14

C7/14

D4/14

17The probability that A speaks truth is 5/12 and the probability that B speak truth is 5/14. What is the probability that both speak falsehood while making a statement?

A2/8

B1/8

C3/8

D5/8

18Bag $P$ contain $6$ Red marbles and $5$ blue marbles while Bag $Q$ contain $5$ Red marbles and $6$ blue marbles. Two marbles, one each from the two bags are drawn at random. What is the probability that both the marbles are of same colour?

A9/121

B95/121

C60/121

D98/121