The ratio of present ages of a husband and a wife is 5:4, which of the following can be possible ratio of their age 20 years ago?
(A) 5: 4 (B) 6:5 (C) 23:20 (D) 13:10
Answers
Answered by
3
Try Hit and Trial Method:
(5x+20)/(4x+20) =
(A) x will get cancel out.
(B) x=20
(C) 2x=15 ( x will be in fraction which cannot be the option as age cannot be in fraction)
(D) x= -30
Thus, answer will be B, 6:5.
(5x+20)/(4x+20) =
(A) x will get cancel out.
(B) x=20
(C) 2x=15 ( x will be in fraction which cannot be the option as age cannot be in fraction)
(D) x= -30
Thus, answer will be B, 6:5.
Answered by
1
Answer:
Step-by-step explanation:
By Observation only 13:10 is possible
13:10
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