GD Constable04 May 2026Shift 3Simplification and Approximation

53 + 72 − 36 + 49 × 2 − (47 + 11) = ?

Answer और ExplanationAnswer and explanation

Answer: (A) 129

कोष्ठक: (47 + 11) = 58
गुणा: 49 × 2 = 98
अब: 53 + 72 − 36 + 98 − 58
धनात्मक पद = 53 + 72 + 98 = 223, ऋणात्मक पद = 36 + 58 = 94
= 223 − 94 = 129
✓
उत्तर 129 है।
Bracket: (47 + 11) = 58
Multiplication: 49 × 2 = 98
Now: 53 + 72 − 36 + 98 − 58
Positives = 53 + 72 + 98 = 223, negatives = 36 + 58 = 94
= 223 − 94 = 129
✓
The answer is 129.
SMART APPROACH

इकाई अंक (Unit digits): 3 + 2 − 6 + 8 − 8 = −1 → उत्तर 9 पर खत्म होगा। सिर्फ़ 129 का आख़िरी अंक (Digit) 9 है।

Unit digits: 3 + 2 − 6 + 8 − 8 = −1 → the answer ends in 9. Only 129 ends in 9.

Source: GD Constable · 04 May 2026 · Shift 3। Solution: Prashant Sir, Vijayastra।Source: GD Constable · 04 May 2026 · Shift 3. Solution by Prashant Sir, from Vijayastra.