Question

$(1 + 1/3)(1 + 1/4)(1 + 1/5).....(1 + 1/19)=?$

• A. 20/19
• B. 20/3
• C. 22/3
• D. 19/3

Answer 1

Answer:

B. 20/3

$(1 + 1/3)(1 + 1/4)(1 + 1/5).....(1 + 1/19)$

$=4/3\times5/4\times6/5\times.....\times20/19$

$= 20/3$