A student multiplied 7236 by 65 instead of multiplying by 56. By how much was his answer greater than the correct answer?
As per the given conditions The student had to multiply 7236 by 56 So 7236 x 56 ——(i) which is the correct one But the student multiplied by 65 Sp 7236 x 65 ———(ii) which is the wrong one Hence the difference between the correct and the incorrect value can be calculated by subtracting the two above obtained equations (i) and (ii). That is 7236 x 65 – 7236 x 56 Taking out 7236 as the common factor =7236 (65-56) =7236 (9) = 7236 x 9 = 65124 Answer Therefore the first answer was greater than the second one by the value 65124.
