Question

A box made of sheet metal costs rs1620 at rs 30 per square mere. it the box is 5 m long and 3 m wide ,find its height​

Answer 1

Answer:

I hope my answer will help you a lot

Step-by-step explanation:

We know that

Area of steel metal = Total cost / Cost per m

By substituting values

Area of sheet metal =

120

6480

So we get

Area of sheet metal =54 m

So we get

Area of sheet metal =2(1b+bh+h1)

54=2(5×3+3×h+h×5)

On further calculation

27=15+3h+5h

So we get

8h=12

By division

h=1.5m

Therefore, the height of sheet metal is 1.5m

Answer 2

Answer:

աɛ ӄռօա ȶɦǟȶ 

ǟʀɛǟ օʄ ֆȶɛɛʟ ʍɛȶǟʟ = ȶօȶǟʟ ƈօֆȶ / ƈօֆȶ քɛʀ ʍ2

ɮʏ ֆʊɮֆȶɨȶʊȶɨռɢ ʋǟʟʊɛֆ

ǟʀɛǟ օʄ ֆɦɛɛȶ ʍɛȶǟʟ =1206480

ֆօ աɛ ɢɛȶ

ǟʀɛǟ օʄ ֆɦɛɛȶ ʍɛȶǟʟ =54 ʍ2

ֆօ աɛ ɢɛȶ

ǟʀɛǟ օʄ ֆɦɛɛȶ ʍɛȶǟʟ =2(1ɮ+ɮɦ+ɦ1)

54=2(5×3+3×ɦ+ɦ×5)

օռ ʄʊʀȶɦɛʀ ƈǟʟƈʊʟǟȶɨօռ 

27=15+3ɦ+5ɦ

ֆօ աɛ ɢɛȶ

8ɦ=12

ɮʏ ɖɨʋɨֆɨօռ

ɦ=1.5ʍ

ȶɦɛʀɛʄօʀɛ, ȶɦɛ ɦɛɨɢɦȶ օʄ ֆɦɛɛȶ ʍɛȶǟʟ ɨֆ 1.5ʍ