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1. There is provision of food in fort for 1200 soldiers for 60 days .After 15 days . 200 soldiers leave the fort .Remaining food will last for how many days?
- A. 56 days
- B. 56 days
- C. 56 days
- D. 56 days
Answer: Option D
Explanation:
Work equivalence method:
1200 × 45 = 1000 × x
Hence, x = 54 days
Variation Method:
After 15 days 200 soldiers left.
Soldiers Food for days
1200 ↓ 45
1000 ↑ x (let)
Arrows show the opposite variation to each other
1200/1000 = x/45
Or, x = (1200 × 45)/1000
= 54 days.
1200 × 45 = 1000 × x
Hence, x = 54 days
Variation Method:
After 15 days 200 soldiers left.
Soldiers Food for days
1200 ↓ 45
1000 ↑ x (let)
Arrows show the opposite variation to each other
1200/1000 = x/45
Or, x = (1200 × 45)/1000
= 54 days.
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