The sum of three numbers is 2, the 1st number is 1/2 times the 2nd number and the 3rd number is 1/4 times the 2nd number. The 2nd number is:
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 8/7
Given,
a + b + c = 2
a = b/2, c = b/4
Now,
b/2 + b + b/4 = 2
⇒ (2b + 4b + b)/4 = 2
⇒ 7b/4 = 2
⇒ b = 8/7