Question

If four numbers in arithmetic progression are such
that the fourth number is 7 times the first number
and their sum is 64, then the numbers are:
A. 3,6,9,12
B. 4, 10, 16, 22
C. 5, 10, 15, 20
D. 4, 12, 20, 28​

Answer 1

Answer:

D is the correct answer

Answer 2

Answer:

Consider this .

we can easily calculate the required Arithmetic progression