Tom hatches an evil plan to catch Jerry by placing mouse traps all over the room. Each mouse trap is 15cm long and 10cm wide. Th
e room is 5m long and 3.6m wide. Tom places 1000 mouse traps in the room. How much room does Jerry have left to walk?
1 answer:
Answer:
3 m²
Explanation:
area of each trap = L × B = 15 cm × 10 cm = 0.15 m × 0.1 m = 0.015 m²
total area occupy by trap = number of traps × each area = 1000 × 0.015 m² = 15 m²
area of the room = 5 m × 3.6 m = 18 m²
amount of room remaining for Jerry to walk = 18 m² - 15 m² = 3 m²
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