Question

The average of 4 terms is 20 and the 1st term is 1/3 of the remaining terms. What will be the first number?​

Answer 1

Answer:

hii

your answer is here !

Step-by-step explanation:

=> Average of 4 terms = 20

=> Hence, the total sum of 4 terms = 80

=> Let terms be A,B,C,D

=>So, the sum will be A+B+C+D =80

=> Given, 3A = B+C+D.

=>So, 4A = 80,

=> A = 20

follow me !

Answer 2

Average of 4 terms = 20

Hence, the total sum of 4 terms = 80

Let terms be A,B,C,D

So, the sum will be A+B+C+D =80

Given, 3A = B+C+D

So, 4A = 80,

A = 20