Question

A purse has only one rupee and to rupee coin in it the number of 2 rupee coins is one third of the number of one Rupee coins if the person has RS 115 find the number of 2 rupee coins

Answer 1

let the no. of 1 rupee coin be x
no of 2 rupees coin is x/3
total=115rs
now we get this equation
x+2(x/3)=115
3x/3 + 2x/3 =115
5x/3=115
5x= 115*3
5x= 345
x= 69
no of 2 rupees coin is x/3
x/3=69/3
= 23

Answer 2

let the no. of one rupee coin=x
then the no. of two rupee coin=1/3 × x = x/3
atq.
1 (x) + 2 (x/3) =115
x + 2x/3 = 115
$\frac{3x + 2x}{3} = 115$
5x/3 = 115

$x=\frac{115 \times 3}{5}$
x = 9
hence no. of two rupee coin = x/3
= 69/3
= 23 coins