1.

Evaluate:\(\frac 1 {15} + \frac 1 {35} + \frac 1 {63} + \frac 1 {99} + \frac 1 {143}\)

A. \(\frac 4 {39}\)
B. \(\frac 5 {39}\)
C. \(\frac 7 {39}\)
D. \(\frac {10} {39}\)
Answer» C. \(\frac 7 {39}\)


Discussion

No Comment Found