A is 25% older than B By what percent is B younger than A .
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Please explain the answer and the answer is 20%
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Answer:
let B's age be 100.
Then A's age =100 +25=125
if A's age is 125 then B's age is 100.
if A's age is 100 then percentage of B's age is 25\125*100=20℅.
ans: B is 20℅younger than A
Answered by
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Answer:
let B's age be 100years
Therefore A's age is 100+(25%of B's age)
=100+25/100*100
100+25=125
when A's age is 125yrs B is 25 yrs younger
when A's age is 1yr B is 25 /125 yrs younger
when A's age is 100yrs B is 25/125*100 yrs younger
=20 years
since we have calculated the age upon 100
the percentage of B younger than A is 20 %
(prove of the above statement
B younger than A by 20 years
so percentage = youngness/original age*100
20/100*100=20%)
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