Question

please solve questions no 11 12 13 14 15 tomorrow examination

Answer 1

11. area of four walls =2{(l+b)h}

=2{(12+8)5}

=10(20)

=200

12. area of four walls =2{(l+b)h}

=2{(25+10)5}

=10(35)

=350

13. area of four walls =2{(l+b)h}

=2{(6.2+3.8)3.2}

=6.4(10)

=64sq m

area of 1 door = l*b

=2*1.2

=2.4sq m

area of 2 doors=2.4*2

=4.8 sq m

area of 1 window = l*b

=1.2*1.5

=1.8sq m

2 windws area =1.8 *2

=3.6 sq m

area to be whitewash=64-(4.8+3.6)

=64-5.4

=58.6 sq m

cost =58.6*10

=₹586.00

14. size of wall =2.8m *4m

=280 cm *400 cm

tile require=280*400/10*14

=800