Question

A student multiplied 8545 by 87 instead of multiplying by 78. By how much was his answer greater than the correct answer?

Answer 1

first we have to multiply 8545 by 87 we get answer as 7,43,415 then we have to multiply 8545 by 78 we get answer as 6,66,510 then we have to subtract

7,43,415

-6,66,510

76,905

Hence,the answer is 76,905