Question

Azad a labourer who was working at a site of a multi rise building in Noida had come four years ago from Motihari in Bihar.
1)What do you think would have been the causes for his migration to Noida?
2)Compare the condition of his village and his dwellings in Noida.
3)Due to the sudden lockdown in 2020 what were the consequences he faced?
4)How do you think he managed them?
5)What were the problems he faced when he decided to go back to his village during that time?

Answer 1

Solution :

The mean of 10 numbers is 55

=> the sum of 10 numbers = 55×10 = 550.

When one number is included, the mean becomes 60.

the mean of 11 numbers is 60

=> sum of 11 numbers = 60×11 = 660.

Therefore :

The included number = sum of 11 numbers - sum of 10 numbers

=> 660 - 550

=> 110.