Question

if costs of 1kg soap rupees 40 find the cost of 700g of soap​

Answer 1

Answer: 28

Step-by-step explanation:

Given: cost of 1kg soap(1000g) = Rs.40

To find: cost of 700g of soap  

if: 1000g = Rs40

  700g    = Rs X  

By Cross multiplication:   X × 1000 = 700 × 40

                                      ==> X= (700×40)÷ 1000

                                      ==>X= 28.

∴ Cost of 700g of soap is Rs 28.

Answer 2

1kg soap cost=40rupee

700g soap cost=700÷40

=17.50 rupees