Question

Q. A rectangular tin 20 cm long and 12 cm wide contains 1680 cm² of flour. What is the depth of flour in the tin if it is spread evenly.​

Answer 1

Answer:

• Depth of the flour on the tank = 7 cm

Explanation :-

Given

• Length of a rectangular tin = 20 cm

. Breadth of a rectangular tin = 12 cm Volume of flour the rectangular tin contains = 1680 cm 3

To find

The depth of the flour in the tin

Knowledge required :-

Formula of volume of rectangle :

Volume of rectangle = |x b × h

where,

• l = length of the rectangle

• b = breadth of the rectangle =

•h height (depth) of the rectangle

Solution

Substitute the values in the formula of volume of rectangle,

- Volume of rectangular tank = Ibh

→ 1680 = 20 × 12 x h

→ 1680 = 240 x h

→ 1680/240 = h

+ 7 = h

Depth of the flour on the tank = 7 cm