Hexaware Company Numerical Ability Clocks and Calendars

In a car wheel, two spokes cover 15 degree. Then for the entire car,how many spokes are there?

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Hexaware Other Question

Let ax2 + bx + c = 0 If the sum of the equal roots is equal to the product of the same
roots.Then which
of the following hold true
(a) a + b = 0
(b) a = 0
(c) c = 0
d) a + c = 0
A person's salary is getting reduced by 20%. What percentage should be added to get back his
original salary?