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A person, invested some amount at the rate of 12% simple interest and some other amount at the rate of 10% simple interest. He received yearly interest of Rs. 130. But if he had interchanged the amount invested, he would have received Rs. 4 more as interest. How much did he invest at different rates?

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The correct Answer is:
Rs. 500 at 12% and Rs. 700 at 10%
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A person invested some amount at the rate of 12% simple interest and a certain amount at the rate of 10% simple interest. He received yearly interest of Rs 130. But if he had interchanged the amounts invested, he would have received Rs 4 more as interest. How much did he invest at 12% simple interest? (a) Rs 400 (b) Rs 500 (c) Rs 700 (d) Rs 800

A person invested some amount at the rate of 12% simple interest and the remaining at 10%. He received yearly an interest ofX 130. Had he interchanged the amount invested, he would have received an interest ofX 134. How much money did he invest at different rates?

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A man invested an amount at 10% per annum and another amount at 8% per annum simple interest. Thus, he received ₹ 1350 as annul interest. Had he interchanged the amounts invested, he would have received ₹ 45 less as interest. What amounts did he invest at different rates ?

Susan invested certain amount of money in two schemes A and B, which offer interest at the rate of 8% per annum and 9% per annum, respectively. She received Rs. 1860 as annual interest. However, had she interchanged the amount of investments in the two schemes, she would have received Rs. 20 more as annual interest. How much money did she invest in each scheme ?

NAGEEN PRAKASHAN-LINEAR EQUATIONS IN TWO VARIABLES -Exercise 3e
  1. A boat travels for 7 hours. If it travels 4 hours downstream and 3 hou...

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  2. A sailor goes 8 km downstream in 40 minutes and returns in 1 hours....

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  3. Anshula walks 35 km partly at the rate 4 km/hour and Partly at 5 km/ho...

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  4. A bucket when filled (5)/(7) with water weights 12 kg and filled (3)/(...

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  5. Acids with 25% and 40% concentrations are mixed to get 60 litres of 30...

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  6. A person, invested some amount at the rate of 12% simple interest and ...

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  7. rates?43. A milkman buys 15 litres milk partly at the rate of 12 per l...

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  8. Ved travels 600 km to his home partly by train and partly by car. H...

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  9. Students of a class are preparing for a drill and are made to stand...

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  10. A part of monthly hostel charges is fixed and the remaining depends on...

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  11. The ratio of incomes of A and B is 9 : 7 and the ratio of their expend...

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  12. Mr. Mohit has decided to walk on a treadmill for a fixed distance. Fir...

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  13. It takes 12 hours to fill a swimming pool using two pipes . If the pip...

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  14. A number consists of three digits whose sum is 17. The middle one exce...

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  15. In an examination, the number of those that passed and the number of t...

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  16. Ratio between the girls one long 11 class of 40 students is 2:3 five, ...

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  17. A certain amount is charged for 1 km for a scooter fare and lesser amo...

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  18. If 3 taps are open together, a cistern is filled in 3 hrs. One of the ...

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  19. When the numerator of a fraction is increased by 4, the fraction incre...

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  20. Solve for a and b : 2^(a) + 3^(b) = 17 and 2^(a+2) - 3^(b+1) = 5

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