Officer checks (50 + 1)(50 − 1) = ?
अधिकारी (50 + 1)(50 − 1) के मान की जाँच करता है। इसका मान क्या है?
Answer और ExplanationAnswer and explanation
Answer: (A) 2499
(a + b)(a − b) = a2 − b2
(50 + 1)(50 − 1) = 502 − 12 = 2500 − 1 = 2499
✓
उत्तर 2499 है।
(a + b)(a − b) = a2 − b2
(50 + 1)(50 − 1) = 502 − 12 = 2500 − 1 = 2499
✓
The answer is 2499.
Source: Delhi Police · 16 Jan 2026 · Shift 2। Solution: Prashant Sir, Vijayastra।Source: Delhi Police · 16 Jan 2026 · Shift 2. Solution by Prashant Sir, from Vijayastra.