Sunday, April 3, 2011

Some brain teasing questions

1- A person gives a loan for Rs 1000 on repayment of Rs 100 per month for one year. What is the rate of interest pa ?
2-What is the area of a triangle having sides 5 cm,12,cm and 13 cm.
3-What is the sum of all even numbers from 1 to 100.
4-Which number is neither prime nor composite?
5-What is the sum of all exterior angles of an octagon?

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