Question

The cost of a calculator and a typewriter is in
the ratio 1:9. If the typewriter costs 360, find
the cost of calculator.
​

Answer 1

Answer:

40

Step-by-step explanation:

let price of calculator be x

let price of typewriter be 9x=360.......1

so firstly we find value of x

from equation 1

$x = \frac{360}{9} \\ x = 40$

so calculator price =x=40

Answer 2

Answer:

Total = x

Xx9/10=360

x=36oxlo/9=36oo/9=400

Cost of calculator-400-360=40

Rs 40