Question

a purse has only one rupee and two rupee coins in it. the number of two rupee coins ise one third the number of one rupee coins. if the purse has rupees 115 , find the number of two rupee coins.​

Answer 1

let x be no of rs.1 coins and y be no of rs.2 coins

a.t.q.

x=3y

& x+2y=115

3y+2y=115

y=115/5=23

hence no. of rs. 2 cioins in the purse is 23.

is it good

Answer 2

Answer:

No. of one-rupee coins = 3x

No. of two-rupee coins = x

Value of one-rupee coins = 3x

Value of two-rupee coins = x×2 =2x

Given value = 115

So ,

3x+2x = 115

5x = 115

x = 115 =23

—

5

No. of one-rupee coins = 3x =3×23 =69 coins

No. of two-rupee coins =x =23 coins

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