Tube lessons

1)

If P=Principal, R=rate percent per annum, T=time in years and S.I=simple interest then S.I=

\(\frac{100 \times P}{RT}\)
\(\frac{100 PR}{T}\)
\(\frac{PRT}{10}\)
\(\frac{PRT}{100}\)

2)

The simple interest on Rs 7500 at 4% p.a for \(2\frac{1}{2}\) years is

Rs 1875
Rs 7500
Rs 750
Rs 937.50

3)

The amount received by a man by investing Rs 4000 at the rate of 20 paise per rupee per annum for 6 months is

Rs 4400
Rs 400
Rs 200
Rs 4200

4)

The simple interest on Rs 810 from April \(5^{th}\) to \(17^{th}\) at \(4\frac{1}{2}\)% p.a is

Rs 72.90
Rs 7.29
Rs 7.25
Rs 7.30

5)

A man has Rs 8000 to invest. He invest Rs 5000 at 3% p.a. At what rate of interest he invest the remaining part in order to obtain a 4% interest on the total sum

5%
\(5\frac{1}{3}\)%
\(5\frac{2}{3}\)%
\(5\frac{1}{2}\)%

Mathematics

Eight Standard

Test your understanding of this lesson Simple interest | Part-1:-

You may like this videos