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At simple interest a sum becomes (49)/...

At simple interest a sum becomes `(49)/(40)` of itself in `2 1/2` years. The rate of interest per annum is
(a) 7%
(b) 8%
(c) 12%
(d) 9%

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RD SHARMA ENGLISH-SIMPLE INTEREST-All Questions
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  9. The difference between the interest obtained for Rs 1000 at 12% per ...

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  10. Which of the following yields maximum interest for 2 years? (a) Rs 1...

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  11. If a sum of Rs 3000 is lent out at 3% per annum for 20 years under s...

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  12. If a sum of Rs 2000 is lent out at 2% per annum for 10 years under s...

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  13. If interest on Rs x for 2 years at R% per annum is Rs 80, then inter...

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  14. At simple interest a sum becomes (49)/(40) of itself in 2 1/2 years....

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  15. At what rate percent per annum simple interest will a sum double its...

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  16. In what time will a sum of Rs 8000 amount to Rs 8360 at 6% per annum...

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  17. a,b and c are the three sums of money such that b is the simple i...

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  18. The simple interest at R% per annum for n years will be Rs R on a su...

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  20. At which rate percent per annum simple interest will a sum triple it...

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