Quantitative Aptitude Ques 43

Question: If $ P( \frac{a}{3},4 ) $ is the mid-point of the line segment joining $ A,(-,6,5) $ and $ B,(-,2,,3), $ then a is equal to

Options:

A) (a) $ -,4 $

B) (b) $ -12 $

C) 12

D) $ -,6 $

Show Answer

Answer:

Correct Answer: B

Solution:

  • We have, $ =\frac{-,6+(-,2)}{2}=\frac{a}{3} $

$ \Rightarrow $ $ \frac{a}{3}=\frac{-,8}{2} $

$ \therefore $ $ a=-12 $