Question

4$\times (1+\frac{1}{2})\times (1+\frac{1}{3})\times (1+\frac{1}{4})\dots \dots \dots .\times (1+\frac{1}{150})\times \frac{1}{151}$ = ?

• A. 150
• B. 4
• C. 1
• D. 2
• E. None of these

Answer 1

The correct option is D

2

4$\times \frac{3}{2}\times \frac{4}{3}\times \frac{5}{4}\dots \dots \dots .\times \frac{151}{150}\times \frac{1}{151}$

= $\frac{4}{2}\times 1=2$