Question

Leena has 117 rupees in form of 5 ruee coins and 2 rupee coins. Thr number of 2 rupee coins is 4 times taht od 5 rupee coins. Find the number of coins of each denomination

Answer 1

Your answer is attached. Hope it helps.

Answer 2

Answer:

The number of 2 rupee coins is 36 and The number of 5 rupee coins is 9

Step-by-step explanation:

Let x be the number of coins of Rs.5

Let y be the number of two rupee coins

Since we are given that  The number of 2 rupee coins is 4 times that of 5 rupee coins.

So, $y=4x$  -1

Now we are given that Leena has 117 rupees in form of 5 ruee coins and 2 rupee coins.

So, $5x+2y=117$    ----2

Substitute the value of y from 1 in 2

$5x+2(4x)=117$  

$5x+8x=117$  

$13x=117$  

$x=\frac{117}{13}$  

$x=9$  

Substitute the value of x in 1 to get value of y

$y=4(9)$

$y=36$

Hence The number of 2 rupee coins is 36 and The number of 5 rupee coins is 9