Question

1. Find the volume, the total surface area of a rectangular solid 6 m long, 4.5 m broad and 80 cm high.
2. Find the cost of 8 kg apples, if 7 kg of apples costs 315 rupees.
3. The total surface area of a cube is 726 square cm. Find it's volume.
4. What are rational numbers? Give ten examples.
5. Solve : 3x + 5 = 11.
Please guys solve and give me my answer Any question...​

Answer 1

Answer:

ANSWER

R.E.F image

Area of cuboid (room) =2bh+2hl

=(2×20)+(2×24)

=88m

2

Area of paper =lb

=l×0.5m

=0.5lm

2

Area of cuboid = Area of paper

88=0.5l⇒

l=176m

hope it help you .....

thank you. .......

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Answer 2

Answer:

lbh =6×4.5×8000

1. =2160000

1 kgapple is 45rupees

1. 8kg apple is 360 rupees

4.3x+5=11

3x=6

x=2