CTS Company Numerical Ability Area and Volume

There are three cylinders with same height and surface area. If a
new cylinder is created by me lting these three with the same height as
before what is the surface area of the new cylinder when compared to
that of the previous.
A. 25% more B.50% more C.100% more D.None

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CTS Other Question

A trader frauds by 10% while buying and 10% while selling the
same. What is the total gain he obtained during the transaction?
A. 13 B.221/4 C.20 D.None of these
In a club there are certain no. of males and females. If 15 females are absent then no. of males will be twice that of females. If 45 males are absent then female strength will be 5 times that of males. Find no. of males actually present.