1.

Solve the following: 75 × 851. 63752. 32753. 34254. 64755. None

Answer» Correct Answer - Option 1 : 6375

Concept used:-

Trick to multiply two numbers ending in 5 with difference of 10 between them.

Method:-

  • Write 75 at the end.
  • Add 1 to ten’s place of the bigger number.
  • Now multiply the increased digit with the ten’s digit of the smaller number
  • Write the product so obtained on the left side of 75

Calculation:-

Let the answer be A75.

A = (8 + 1) × 7 = 63 (using step 2 and 3)

Hence, 6375 is our answer.



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