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Q.

Shalini has to cut out circles of diameter 1 1 4  cm  from an aluminium strip of dimensions 8 3 4  cm×1 1 4 cm  . How many full circles can Shalini cut?


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a

3

b

5

c

7

d

9 

answer is C.

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Detailed Solution

Given,
Length of the strip  =8 3 4  cm = 35 4 cm.  
Diameter of the circle =1 1 4  cm = 5 4 cm.  
Question ImageThe number of circles that can be cut will be:
length of the strip÷ diameter of the circle  
35 4 ÷ 5 4 35 4 × 4 5 7  
Thus, she can cut 7 full circles from the strip.
Therefore, the correct option is 3.
 
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Shalini has to cut out circles of diameter 1 1 4  cm  from an aluminium strip of dimensions 8 3 4  cm×1 1 4 cm  . How many full circles can Shalini cut?