Question

rice is 40percent costlier than wheat .by what percent is wheat cheaper than rice​

Answer 1

Answer:

Let price of wheat = x

then, price of rice = x + 40x/100 = x + 2x/5

or, price of rice = 7x/5

Now,

diff. between the price of rice and wheat = price of rice - price of wheat

=) 7x/5 - x = 2x/5

Now, percentage of this diff. = part/whole × 100

=) (2x/5)/(7x/5) × 100

=) 2/7 × 100 = 28.57 % ~ 29%

Hence,

wheat is cheaper than rice by 29%.

Answer 2

Step-by-step explanation:

let 100 be the value of rice

rice=140( 100+40)

difference between them= 40

percentage of how much wheat is cheaper than rice =40/140×100

=28 4/7 percentage