Question

In a purse there are 30 coins, twenty one-rupee and remaining 50-paise coins. Eleven coins are picked simultaneously at random and are placed in a box. If a coin is now picked from the box, find the probability of it being a rupee coin?
A) 4/7
B) 2/3
C) 1/2
D) 5/6

Answer 1

answer

there are 30 coins in total
there are 20 one rupee coins

probability = 20/30
=2/3

so option (b) is correct.

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