one hour before john started walking from p to q , a distance of 38 miles , ann had started walking along the same road from q to p . ann walked at a constant speed of 3 miles per hour and john at 2 miles per hour . how many miles had ann walked when they met ?
"ann walks from q to p at a speed of 3 miles / hr for one hour . she covers 3 miles in 1 hour and now distance between john and ann is 38 - 3 = 35 miles . ann walks at 3 mph and john at 2 mph so their relative speed is 3 + 2 = 5 mph . they have to cover 35 miles so it will take them 35 / 5 = 7 hours to meet . in 7 hrs , ann would have covered 7 hrs * 3 miles per hour = 21 miles . adding this to the 3 miles she covered before john , ann covered a total of 3 + 21 = 24 miles . answer ( e )"
multiply(divide(38, add(3, 2)), 2)