Question

A and B share the cost in a ratio of 3:2 . The cost is ?85; how much does A pay?

Answer 1

The amount of money A pays is
`\$51`

Explanation:

Let

x-----> amount of money A pays

y-----> amount of money B pays

we know that

`x+y=85` ------> equation A

`(x)/(y)=(3)/(2)`

so

`y=(2)/(3)x` ------> equation B

substitute equation B in equation A and solve for x

`x+((2)/(3)x)=85`

`(5)/(3)x=85`

`x=85*3/5=\$51`