Question

39 kg of rice is taken out of a bag of rice. If 8/21 of the rice is left in the bag then find the quantity of rice the bag contained in the beginning.

Answer 1

let quantity of rice contained in the beginning = x
amount of rice left in the bag = 8/21 of x
amount of rice taken out = 1 - 8/21
= 13/21 of x
also amount of rice taken out = 39 kg
so 13/21 of x = 39
quantity of rice the bag contained in the beginning(x) = 39 × (21/13)
= 3×21
= 63 kg

Answer 2

Step-by-step explanation:

Let the quantity of rice contained in the beginning= x

amount of rice left in the bag= 8/21 of x

amount of rice taken out = 1 - 8/21 = 13/21 of x

also amount of rice taken = 39 kg

quantity of rice contained= 39*21/13

= 3*21

63