Question

the average of four numbers is 30.one of the numbers is 24.what is the sum of the other three numbers?​

Answer 1

The sum of the other three numbers is 96

Explanation:

Assume :

• First number = a
• Second number = b
• Third number = c
• Fourth number = d

Known :

• (a + b + c + d)/4 = 30
• a = 24

Asked :

• b + c + d = ?

Solution :

(a + b + c + d)/4 = 30

a + b + c + d = 30 x 4

a + b + c + d = 120

Since a = 24,

a + b + c + d = 120

24 + b + c + d = 120

b + c + d = 120 - 24

b + c + d = 96

Conclusion :

The sum of the other three numbers is 96