If a = 2b = 4c = 48, than the arithmetic mean of a, b and c is

A 28

B 32

C 36

D None

Correct Answer: Option A

Solution:

দেওয়াআছে, a = 2b = 4c = 48

অর্থাৎ a = 48; 2b = 48

b = 48/2 = 24

আবার, 4c = 48 => c = 48/4 = 12

অতএব, a, b এবং c এর গড় = \(\frac{{a + b + c}}{3} = \frac{{48 + 24 + 12}}{3} = \frac{{84}}{3}\) = 28