Question

13. If the average of 20 numbers is 100, then
the sum of the numbers is
(a) 1900
(b) 1950
(C) 1980
(d) 2000​

Answer 1

average=(sum of no.) /total no.

100=sum of no. /20

sum of no. =100*20

sum of no. =2000

Answer 2

Answer :

Given -

• total number = 20
• Average of total number = 100

To find -

• Sum of numbers

Solution -

Now,

• Average = sum of observations/ total number of observations

→ 20 = sum of observations/ 100

→ Sum of observations = 100 × 20

→ Sum of observations = 2000

Therefore, the sum of numbers is 2000 and option d) is correct.