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Let total marks obtained by both of them is x and y respectively. x – y = 12 And, x = 0.55 × (x + y) x = 0.55 × (12 + y + y) x = 0.55 × (12 + 2y) x = 6.6 + 1.1y 12 + y = 6.6 + 1.1y 0.1y = 5.4 y = 54 x = 54 + 12 = 66
Yeshudas borrowed a certain amount from a Bank at an interest rate of 2.5% p.a. and after 4 years , he repaid a total amount of 46,200 to the Bank. How ...
A certain amount will become six times in 20 years. How long does it take for the same amount to become 5 times? Assume the same rate of simple interest...
Rahul deposits a sum of money at an annual compound interest rate of 15%. After 1 year, the interest accumulated amounts to Rs. 180. If he increases his...
A woman lent Rs. 29500 at 13% p.a. compound interest, compounded annually for two years. After two years, the total amount earned by the woman is again ...
A certain sum when invested for 3 years in a scheme offering simple interest of 20% p.a. gives an interest of Rs. 1470. What is 130% of the sum invested?
Determine the value of 'K' if an investment of Rs. 30,000, made under a simple interest scheme at an annual rate of 18%, yields an interest amount of Rs...
Out of a total sum of ₹5,000, Danish invested one part at 12% simple interest per annum and the remaining part at 10% simple interest per annum. If th...
Mr. X invested Rs. 900 in two schemes, A and B in the ratio of 7:3, respectively. Scheme A and B are offering simple interest at rate of 7% per annum an...
A man deposited Rs. 10000 at 10% compound interest, compounded annually while Rs. 8900 at 13% simple interest per annum. What will be the difference bet...
