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
50 days
C
48 days
D
54 days
Correct Answer: 54 days
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.