The greatest number that will divide 42, 84 and 153 so as to leave the same remainder in each case is:
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 3.
Given numbers: 42, 84, 153
HCF of:
84 – 42 = 42
153 – 42 = 111
153 – 84 = 69
Now, HCF of 42, 111, 69 = 3