Math, asked by sadhnajuli1982, 10 months ago

find the cost of papering a room 8m long 6m wide and 4m high with paper 80cm wide at the rate of rs 120 per piece of 5m​

Answers

Answered by tkathira039
3

Answer:

Step-by-step explanation:

length=8m

width=6m

height=4m

area of papering a room=2h(l+b)+lb

                                        =2  x 4(8+6)+8 x6

                                        =2 x (32 +24)+48

                                        =2 x 56 +48

                                       =112+48

                                       =160m^2

cost of papering per 5m = Rs 120

cost of papering per m =120/5

                                      =Rs 24

     cost of papering      =160m x 24

                                      =Rs 3840

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