Question

A box made up of a block of fine wood costs rs 1300 at rs 25 per sq. metre if the box is 4m long and 3m wide, find its height? ​

Answer 1

Answer:

2 metres

Step-by-step explanation:

Upper side=4×3 Square metres

                    =12 Square metres

So, the lower side is also 12 Square metres

The upper costs =25×12 rs

           =300 rs

The lower also costs 300 rs

That means the side costs (1300-300-300)=700 rs

If we open the sides and put it as a rectangle the length of the rectangle will be the perimeter of upper or lower side which is 2(4+3)=14

The breadth will be the hight of the box.

Now,

25 rs is for 1 Square Metre

1 rs is for 1/25 Square Metre

700 rs is for 700/25 squre metre= 28 Square Metre

So the breadth of the rectangle or hight of the box is = 28/14 Metres or 2 metres