The cost of preparing the walls of a room 12m long at the rate of 1.35 per meter square is 340.25 and the cost of matting the floor at 85 paise per meter square is 91.80find the height of the room
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Answer:
Step-by-step explanation:
given
length of room
=12m
cost of preparing per m^2= 1.35 rs
total cost=340.25
340.25=lh×1.35
340.25÷1.35=12×h
252.04÷12=h
21= height of room
rate of matting=
80p
0.85rs
total cost=91.80rs
91.80rs=lb×0.85
91.8=12×0.85×b
91.8÷10.2=b
9m= breath
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