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#29284
Satya
Participant

Solution to challenge question 3: 4187 / 79

Last digit of the dividend[4187] is 7 and the last digit of the divisor[79] isĀ  9. Going by the Last by the Last, the number that has a 7 in units place in 9th table is when it gets multiplied with 3/13/23 etc – 9×3 = 27. So the last digit(unit place) of the quotient is 3.

Now the first 2 digits of the dividend are 41 and the first digit of the divisor is 7. Going by ‘the first by the first’, the closest value to 41 in 7 table is 7×6 = 42 but since 41 is less than 42, we will consider 7×5 = 35. So the first digit(tens place) of the answer is 5.

so 4187 / 79 = 53

Verify: 79×53 = 4187

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