Railways PYQCBT 2 2017

RRB NTPC · Question 67

Find the HCF of 143, 77 and 121.

  1. 6

  2. 11

  3. 4

  4. 7

Show answer & explanation

Answer: (B) 11

Explanation

143 = 11 × 13, 77 = 11 × 7 and 121 = 11 × 11. The only common factor is 11.