There are 1000 men in a group. They have food for 60 days. After 10 days, 500 men left the group. For how many days will the remaining food last?
एक समूह में 1000 आदमी हैं। उनके पास 60 दिन का भोजन है। 10 दिन बाद 500 आदमी समूह छोड़ देते हैं। बचा हुआ भोजन कितने दिन चलेगा?
Answer और ExplanationAnswer and explanation
Answer: (A) 100
बचा भोजन = 1,000 × (60 − 10) = 50,000 आदमी-दिन
अब आदमी = 500
दिन = 50,000 ÷ 500 = 100
✓
भोजन 100 दिन चलेगा।
Food left = 1,000 × (60 − 10) = 50,000 man-days
Men now = 500
Days = 50,000 ÷ 500 = 100
✓
The food lasts 100 days.
SMART APPROACH
आधे आदमी बचे हैं, तो बचे 50 दिन का भोजन दुगुना चलेगा: 50 × 2 = 100।
Half the men are left, so the remaining 50 days of food last twice as long: 50 × 2 = 100.
Source: GD Constable · 09 May 2026 · Shift 1। Solution: Prashant Sir, Vijayastra।Source: GD Constable · 09 May 2026 · Shift 1. Solution by Prashant Sir, from Vijayastra.