Question

Pratap has 3 times as many two rupee coins as he has five rupee coins. He has a total sum of Rs. 77. How many coins of each denomination does he have?​

Answer 1

Step-by-step explanation:

let the no. of ₹5 coin be x and the no. of ₹2 coin be 3x.

A/q

⇒5x+2(3x) = 77

⇒5x+6x = 77

⇒11x = 77

⇒x = $\frac{77}{11}$

⇒x = 7

So, the no. of ₹5 coin = 7

the no. of ₹2 coin = 3×7 = 21