Question

A family of 8 people have enough stock of rice to last for 30 days due to arrival of some relatives this food was consumed in 20 days how many guest joined the famly

Answer 1

Let it be x.

Then 8 * 30 = x * 20

          x = 240/20

             = 12.

Number of guests joined this family = 12 - 8

                                                             = 4

Answer 2

4 people arrived
8×30/20=12
12-8=4