Question

cost of painting a room 130 rupees widh is 4m lessthan and cost of carpet 20 less and find widh of aroom
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Answer 1

Step-by-step explanation:

let the rate of painting =Rs. x/metre2

∴ Length×breadth×x=Rs.120........(i)

Length×(breadth−4)×x=Rs.100.........(ii)

from equation (i) and (ii)

breadthbreadth−4=120100=65

breadth=24m

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