Mathematics

Q1

If a certain number is doubled and the result is increased by 7, the number obtained is 19. What is the original number?

Q5

Three candidates in an election received 1136, 7636 and 11628 votes respectively. What percentage of the total votes did the winning candidate get?

Q7

A man buys calculators at Rs.120 each and sells them at Rs.150 each. What percentage profit does he make?

Q8

An automobile financier claims to be lending money at simple interest, but he includes the interest every six months. If he is charging 10%, the effective rate becomes:

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