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**The total Simple interest on the sum of money of X at 20% per annum and the simple interest on X+250 at 5% per annum for 2 years is 100. Then find the value of X?**

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**The equilateral Triangle of side 22 cm and the perimeter of equilateral triangle and circumference of the circle are in the ratio 3:2 then find the area of the circle. **

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#### The ratio of A’s age 8 years ago and B’s age 12 years hence is 2:3. If A is 6 years elder than B then what is the present age of B?

A scooter is sold by an automatic agency for rs 19200 cash or for rs 4800 cash down payment together with five equal monthly installments. R= 12% per annum find each installment.

A sum of money is lent at certain rate of compound interest. if instead the same amount was lent at same rate under simple interest , the interest for first two years reduced by 120 and for first three years by 366. find the sum

Compound interest and simple interest on a sum of money are 65rs and 60 rs. find the sum and rate of interest if given data is for 2 years of duration.

Money doubles every day, thus in how many days will Re. 1 become Rs. 1,30,000 (approx)

a) 14 b) 15 c) 18 d) 17

Well, if you study well you can solve all compound interest problem.If you need to calculate compound interest payments over a long period, a formula will save a lot of time. First add 1.0 to your interest rate. In the case of our example, .08 becomes 1.08. Then multiply that number by itself the amount of times the interest will be calculated. In our case, it is 12 months, so that figure would be 2.52, or 1.08 to the 12th power. At the end of the 12 months you would have paid $500 times 2.52, or $1,260. Source:http://personalmoneynetwork.com/moneyblog/2011/09/12/calculating-interest/

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The difference between the simple interest on a certain sum at the rate of 10% per annum for 2 years and compound interest which is compounded every 6months in Rs.124.05 what is the principal sum?

8270

8000