Question

Practice Set 16.1
. 10.5 cm and
1. Find the volume of a box if its lengu
8 cm respectively.
ume of a box if its length, breadth and height are 20 cm, 10.5 cm
cuboid shape soap bar has volume 150 cc. Find its thickness if its length is
10 cm and breadth is 5 cm.
3. How many bricks of length 25 cm, breadth 15 cm and
25 cm breadth 15 cm and height 10 cm are required
build a wall of length 6 m, height 2.5 m and breadth 0.5 m?​

Answer 1

Answer:

1.Given = l=8cm,b=20cm,h=10.5cm

volume =l×b×h

volume =8×20×10.5

volume =20×84

volume =1680

2. Given:volume =150cc,length =10cm,breadth =5cm

volume =l×b×h

150=10×5×h

150=150×h

150/150=h

1=h

Answer:1cm

3. Given:length of bricks = 25cm ,breadth =15cm,height =10cm

volume =l×b×h

volume =25×15×10

volume =3750

volume of bricks is 3750cm.

Given:length of wall=6m,height =2.5cm,breadth =0.5m

we convert metre into centimeter.

6m=600cm,2.5=250cm,0.5=50cm

volume =l×b×h

=600×50×250

7500000cm

volume of wall/volume of bricks

7500000/3750

2000

Answer:2000 bricks are required .