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Q.

A leaf of 20 cm2  size grows 5 cm2 per hour and B leaf of 25 cm2 size grows 5 cm2 per hour. The relative growth of leaf A and B respectively is

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a

25% and 50%

b

20% and 25%

c

25% and 20%

d

 50% and 100%

answer is A.

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Detailed Solution

RGR = Growth per unit time /Initial size *100

Leafe -A   RGR520×100=25%

Leafe -B   RGR525×100=20%

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