Question

a sheet 11 cm long and 2 cm wide.Circular pieces of 0.5 cm in diameter are cut from it to prepare discs, calculate the no. of discs that can be prepared.

Answer 1

number of circular pieces that can be cut lengthwise = 11/0.5 = 110/5 = 22
number of circular pieces that can be cut breadthwise = 2/0.5 = 20/5=4
total number of circular pieces that can be cut = 22 x 4 = 88

Answer 2

In the rectangular sheet ;
length = 11 cm
Breadth = 2 cm

Diameter of a Disc = 0.5 cm

Number of discs arranged along the breadth
= 2/0.5
= 4

Number of discs arranged along the length
= 11/0.5
= 110/5
= 22
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Hence the total number of disc which can be prepared
= 4×22
= 88
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