This question was previously asked in

Official Soldier GD Paper : [Goa] - 2019

Option 3 : 6

Indian Army GD All India Mock Test 2021

33167

50 Questions
100 Marks
60 Mins

**Calculation:**

The nearest perfect square around 175 is 169

Least number to be subtracted = 175 – 169

⇒ 6

**∴ The least number which must be subtracted from 175 to make it a perfect square is 6**