Question

average of 7numbers is39 and average of three of them is 27.find the average of the other four?

Answer 1

the sum of 7 no. 7*39=273
the sum of 3 no. 3*27=81
then sum of 4 no. 273-81=192
then average of 4 no. 192/4=48

Answer 2

Step-by-step explanation:

-12×3+4x = 0

x = 9

average of 4no.s = 39+9 = 48