Question
A bag contains 20 white and some black balls. If
the probability of drawing a black ball from the bag is 1.3 times that of drawing a white ball, find the number of black balls in the bag.Solution
If the ratio of the sum invested and simple interest received after 1 year is 20:7 respectively, then find the rate of interest.
Atul invested in scheme A and B that provide simple interest at the rate of 12% and 15% for 3 years and 5 years, respectively. Interest received from sc...
The difference of simple interest from two banks on Rs. 8,000 in 3 years is Rs. 800. If the rate of interest per annum in two banks is R1 and R2, then w...
A sum of ₹2,00,000 is invested for 3 years at a compound interest rate of 5% for the first year, 7% for the second year, and 10% for the third year. C...
Compound interest on a certain sum of money for 2 years is Rs.2600 while the simple interest on the same sum for the same time period is Rs.2500. Find t...
A took a loan of Rs.4450 at simple interest of 10% p.a. and invested the same money in a scheme at simple interest of 20% p.a. Find the profit earned by...
Ankit invested a total of Rs. 63,000 between two SIPs: 'P', offering 10% compound interest compounded annually, and 'Q', offering 12% simple interest pe...
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?
Two persons A and B invest money in two schemes. A invests Rs. 6000 for 2 years in R% CI per annum. B invests Rs.7000 for 2 years in 20% CI per annum. I...
A certain sum of money invested at a rate of 48% p.a. amounts to Rs. 20736 at the end of 15 months if the rate of interest is compounded 5 monthly. Find...
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