What is the square root of 5476?
A84
B76
C74
D66
Answer & Solution
Correct answer: C. 74
1. The number ends in 6, so its square root ends in 4 or 6.
2. Since 70² = 4900 and 75² = 5625, the root lies between 70 and 75.
3. Test 74: 74² = 5476.
_Source: RRB Group D CEN-02/2018 PYQ, Q.55._