Capgemini Company Numerical Ability Geometry

If the radius of the circle is increased by 20% then area is increased by:
a.44% b.120% c.144% d.40% e.none of these

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Capgemini Other Question

helpers are needed to prepare for a fete.each helper can make either 2 large cakes or 35 small cakes per hr.the kitchen is available for 3 hours and 20 large cakes and 700 small cakes are needed.how many helpers are required?a.10 b.15 c.20 d.25 e.30 there are 4 boys and 3 gals.what is the probablity that the boys and gals sit alternatively.