john was 35 years old when he married betty . they just celebrated their fifth wedding anniversary , and betty ' s age is now 7 / 8 of john ' s . how old is betty ?
"assume betty ' s age on marriage = x years . john ' s age on marriage = 35 john ' s age after 5 years = 40 years . betty ' s age after 5 years = x + 5 given : x + 5 = 7 / 8 ( 40 ) = 35 therefore betty ' s current age = 35 option b"
multiply(divide(7, 8), add(35, const_4))