Question

Twenty kilograms of rice lasts 30 days in a family of 8 people. If two guests stay with the family, how many days will 20 kg rice last

Answer 1

Answer:

24 days

Step-by-step explanation:

8 people eat 20 kg in 30 days

So 1 person will eat 20/8 kg =2.5 kg in 30 days.

In 30 days 2.5kg rice is eaten by one person

In 1 day 2.5/30 kg will be required by 1 person

So 2.5/30 kg x 10 people = 25/30 kg will be required every day for 10 people (as two more people joined them)

20 kg rice will last for 20 / (25/30) =

20 x 30/25 = 24 days ...