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Q.

There are two square S1  and S2 . The ratio of their areas is 4:25 . If the side of square  S1 is  6 cm, then the side of Square S2 is

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a

12 cm

b

20 cm

c

15 cm

d

5 cm

answer is B.

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Detailed Solution

S1:S2=4:25=22:52

S1:S2=2×3:5×3=6:15

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