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Probability of getting a blue pen , => p/34 = 1/2 => p = 17 So, number of black pens = 34 – 10 – 17 = 7 Required ratio = 17 : 7
A man invested $4,800 in a scheme offering compound interest compounded annually. If the difference between the interest earned in the 2nd year and the ...
Amit invested 'x' on simple interest at 12% for 7 years and (x + 400) on compound interest at 10% p.a for 2 years. At the end of nine years, he will rec...
A sum of ₹12,000 is invested for 3 years at a certain rate of simple interest. If the same sum was invested at the same rate for 2 years under compoun...
A certain sum of money becomes 4000 in 6 years and Rs. 5400 in 10 years at any certain rate of simple interest. Find the principal amount.
Atul has Rs.300 with him. He invested 40% of the amount at 5% p.a. for 6 years and rest at 25% p.a. for 5 years. Find the sum of simple interests receiv...
A took loan from a bank at the rate of 12%p.a. simple interest. After 5 years he had to pay Rs.7200 interest only for the period. The principal amount b...
The simple interest on a sum of money is 9/20 of the sum. If the number of years is numerically half the rate per annum, then find the rate percent per ...
The compound interest on a certain amount, compounded semi-annually at a rate of 10% per half year for one year, is Rs. 810 less than the simple interes...
What sum of money must be given at simple interest for 3 months at 4% per annum in order to earn Rs. 240 interest?
A person invested Rs. 75,000 at an annual compound interest rate of 12%, compounded annually for 12 months. How much more profit would he have earned if...
