the sum of present age of abe and the age before 7 years is 37 . find the present age of abe . what will be his age after 7 years ?
"present age = x before 7 yrs , y = x - 7 after 7 yrs , z = x + 7 by the qn , x + ( x - 7 ) = 37 2 x - 7 = 37 2 x = 37 + 7 x = 44 / 2 x = 22 z = x + 7 = 22 + 7 = 29 answer : e"
add(divide(add(37, 7), const_2), 7)