Question

reena wants to prepare vegetable pulao. she needs 300 g of rice. if she has to fèed 4 people. how much of rice is needed if the same pulao is prepared for 7 people​

Answer 1

Answer:

525 g is required.

Step-by-step explanation:

300 g rice required for 4 people

amount of rice required for 1 person = 300/4=75g

amount of rice required for 7 people= 75*7=525g

Answer 2

Answer:

This is a question of Ratio and Proportion.

We know that, if we need 300 g of rice for 4 people, then we will definitely need more rice for 7 people. Since the amount of rice increases when number of people increase, we call them to be in Direct Proportion.

If 300 g of rice = 4 people, then x g of rice = 7 people

Product of Means = Product of Extremes

⇒ 300 × 7 = x × 4

⇒ 2100 = 4x

⇒ x = 2100/4

⇒ x = 525 g

Therefore 520 g of rice is needed for preparing pulao for a group of 7 people.