MATHEMATICS PROBLEM SOLVER

It is a site for parents, students and teachers. This site can help O-LEVEL or GCSE secondary school students in mastering mathematics subject. It intends to involve the learners by making them follow up the examples before they can do questions on their own at the TRY THIS.... section. There are some videos, tests, quizzes and past examination questions. Learning the examples will ultimately give students the required confidence in solving various questions in mathematics.

Monday 19 January 2015

SIMPLE INTEREST 3

Ashish deposited the amount of 20,000/= in a bank for 3 years and got a profit of 7200/=. Find the interest rate?

Solution

I = 7200/=, P = 20,000/=, T = 3 years, R = ?

I = PRT

100

7200 = 20,000 x R x 3

100

7200 = 20,000 x R x 3

100

7200 = 200 x R x 3

7200 = 600R

¹²~~7200~~ = ~~600~~R

~~600~~ ~~600~~

Hence the interest rate was 12%

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Sonali deposited the amount of 30,000/= in a bank for 6 years and got a profit of 2700/=. Find the interest rate?

MATHEMATICS PROBLEM SOLVER

Monday 19 January 2015

SIMPLE INTEREST 3

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