Question

the price of 4kg of rice is equal to the price of 9kg of wheat.if the price of 1kg of wheat is rs.20, what is the total cost of 8kg of rice and 9kg of wheat?

Answer 1

Price of 1kg of wheat = Rs.20
So, Price of 9kg of wheat = 20*9 =>180.
As it is  given in question that price of 9kg of wheat is equal to price of 4 kg of rice.
So,
Price of 4 kg of rice = price of 9kg of wheat =Rs.180

Price of 8Kg of rice = 2*Price of 4 kg of rice => 180*2 =360.

Price of 8Kg of rice =360 and
Price of 9Kg of wheat=180

Adding both
Rs.180+Rs.360
we get,
Rs.540. ans

Answer 2

9×20=180/-
4kg=180/-
8kg=360/-
180+360=540/-