Question

Ramani has 3 times as many two -rupee coins as she has five- rupee coins . If she has in all a sum of Rs.77 , then how many coins of each denomination does she have ?

Answer 1

21- two rupee coins

7- five rupee coins

Explanation:

3x(2)=5x

6x=5x

6x+5x=77

11x=77

x= 7

thus 3x(2)means she has 21-2 rupee coins and 7-5rupee coins.