Question

$(1 + 1/2)(1 + 1/3)(1 + 1/4).....(1 + 1/9)=?$

• A. 27/10
• B. 10/27
• C. 9/2
• D. 5

Answer 1

Answer:

D. 5

$(1 + 1/2)(1 + 1/3)(1 + 1/4).....(1 + 1/9)$

$= 3/2\times4/3\times5/4\times.......10/9$

$=10/2$

$=5$