Question

7 kg of rice cost Rs 294.
a. Find the cost of 18 kg of rice.
b. How many of rice can be bought for RS 840?

Answer 1

cost of 18kg rice is 18 (cost of one kg of rice)
tht is 18 (294/7).......18 (42)...756rupees
rice that can be bought for 840 is 840/cost of one kg
that is 840/42. . ....20kg

Answer 2

Given:

7 kg of rice cost Rs 294.

To find:

We have to find-

a. The cost of 18 kg of rice.

b. The amount of rice can be bought for RS 840.

Solution:

a.

The cost of 7kg of rice is 294.

The cost of 18kg of rice is 294×18/7=756.

The cost of 18kg of rice is 756 rupees.

b.

The cost of 7kg of rice is 294.

Thus, the cost of 1kg of rice is 294/7=42 rupees.

Thus for rs 42, we can buy 1kg of rice.

So, for rs 840 we can buy 840/42=20kg of rice.

So, for rs 840 we can buy 20kg of rice.