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Saurabh Pandey

· started a discussion

· 1 Months ago

best method (Question: 232750.0 )

ratio=A square/a square ....... 25/1=25 (6asquare me 6 constant hota hai ...so there is no requirement of 6)

Question:
A cube of edge 5 cm is cut into cubes each of edge 1 cm. The ratio of the total surface area of one of the small cubes to that of the large cube is equal to:
Options:
A) 1 : 125
B) 1 : 5
C) 1 : 625
D) 1 : 25
Solution:

Ans: (d)

Now,

Required ratio 

= T.S.A. of one small cubes : T.S.A. of the big cube

=  6 × (1)2 : 6 × (5)2

=   1   : 25

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