Q198
ArithmeticTime & Work, Pipes & Cisterns
In a camp there was food for 190 days of 4000 men. After 30 days 800 men left. Remaining men will spend the remaining food in how many days?
- a.250 days
- b.230 days
- c.200 days
- d.170 days
Answer: (C) 200 days
Food consumed in 30 days by 4000 men = 30 × 4000 = 120,000 man-days. Remaining food = 190 × 4000 − 120,000 = 760,000 − 120,000 = 640,000 man-days. After 30 days, remaining men = 4000 − 800 = 3200. Days = $\frac{640000}{3200} = 200$ days.