5 years ago A was 6 year elder than B.  After 6 years B will be 8 years elder than C.  After 7 years C will be 10 years elder than D.  If present age of D is 60 years old, then find the present age of A?

84 years  76 years 82 years  90 years

84 years

Present age of D = 60 years Present age of C = (60 + 10) = 70 years Present age of B = (70 + 8) = 78 years Present age of A = (78 + 6) = 84 years