[" Example "],[" are in the ratiol: "7:42" .Find "n" ."],[" Solution "]

Find the average of 4.2, 3.8 and 7.6.

Find the average of 4.2, 3.8 and 7.6.

Find the average of 4.2, 3.8 and 7.6.

Find the average of 4.2, 7.4 and 8.8.

If the coefficients of three consecutive terms in the expansion of (1+x)^(n) are in the ratio 1:7:42, then find the value of n.

If the coefficients of three consecutive terms in the expansion of (1+x)^(n) are in the ratio 1:7:42, then find the value of n.

The coefficients of three consecutive terms in the expansion of. (1+a)^n are in the ratio 1: 7: 42. Find n.

The coefficients of three consecutive terms in the expansion of (1 + a)^n are are in the ratio 1: 7: 42 Find n.

The coefficients of three consecutive terms in the expansion of (1 + a)^n are are in the ratio 1: 7: 42 Find n.