Book Maths Puzzle Numerical Ability Simple & Compound Interest

Ms Reddy has a cumulative deposit account with a branch of state bank of India. She deposits Rs 800 per month for a period of 3 years. After that she receives Rs 65592 as a maturity value. Find the rate of simple interest p.a.

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Book Other Question

Some students planned for a picnic. The budget for the food was Rs 480. As 8 of them failed to join the party, the cost of the food for each member increased by Rs 10. Find how many students went for the party. A bag contains 4 red balls, 6 green balls and some white balls. If the probability of not drawing a white ball in one draw be 2/3 the find the number of white balls.