A. 651
B. 128
C. 31
D. 9
E. 3
2 3 5 8 14 23 41 69.
160 80 120 180 1050 4725 25987.5
Three numbers are in G.P. Their sum is 28 and product is 512. The numbers are
The sum of the series: 1² + 2² + 3² + 4² + ……+ 15² is