What is the largest number that divides 70 and 125, leaving remainders 5 and 8 respectively?

Answer and explanation

Correct answer: D.

  1. Step 1: Subtract remainders: and .
  2. Step 2: Find : , .
  3. Step 3: The common factor is 13.
Answer
.
Why not the others: divides 65 but does not divide 117; and represent large multiples rather than divisors.

Practise more Number Systems and Algebra.

Free questions with an explanation for every one, and full timed CBSE Class 10 mock tests.