A) 42
B) 41
C) 43
D) 45
Correct Answer: B
Solution :
\[\frac{1}{4}-\frac{1}{5}+\frac{1}{5}-\frac{1}{6}+\frac{1}{6}-\frac{1}{7}+\frac{1}{7}-\frac{1}{8}+\frac{1}{8}-\frac{1}{9}\] \[\frac{1}{4}-\frac{1}{9}=\frac{9-4}{36}=\frac{5}{36}=\frac{x}{y}\] \[x=5,\,\,y=36=36+5=41\]You need to login to perform this action.
You will be redirected in
3 sec