Smith is 18 years elder than John. If 8 years ago, Smith was 6 times as old as John, then find Smith present age.

(A) 32.5 years
(B) 24.9 years
(C) 27.5 years
(D) 29.6 years

What is John present age, if after 30 years his age will be 15 times of his age 15 years back.

(A) 16.2 Years
(B) 17.7 Years
(C) 18.2 Years
(D) 15.4 Years

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