Question
By interchanging the given two numbers (not digits),
which of the following equations will be correct? 24 and 9 I. 113 + 24 – 20 × 9 ÷ 12 = 82 II. 19 × 108 ÷ 9 – 24 + 2 = 200         ÂSolution
I. 113 + 24 – 20 × 9 ÷ 12 = 82 113 + 9 – 20 × 24 ÷ 12 = 82 113 + 9 – 20 × 2 = 82 113 + 9 – 40 = 82 82 = 82 II. 19 × 108 ÷ 9 – 24 + 2 = 200          19 × 108 ÷ 9 – 24 + 2 = 200 19 × 12 – 24 + 2 = 200 228 – 24 + 2 = 200 206 ≠200
Dinesh invested Rs. (P-500) at the rate of 27% per annum on simple interest and at the end of three years, he got Rs. 4860 as an interest. Pankaj invest...
A sum on simple interest becomes 9/4 times of itself in five years, find the rate of interest.
A sum of Rs. 6120 is invested at simple interest for 2 years. If the rate interest for first year is 15% p.a. while 25% p.a. for second year, then find ...
If interest is compounded half-yearly, then find the compound interest on Rs. 8,000 at the rate of 20% per annum for 1 year.
The simple interest on a sum of Rs X in 5 years is (2/5)of the principal. What is the annual rate of interest?
Rohit invested a certain amount at a simple interest rate of r% per annum, which increased to 180% of the original amount over 5 years. If Rs. 2500 is...
A certain amount becomes Rs. 7,680 in 6 years and Rs. 9,120 in 9 years on simple interest. Determine the rate of interest per year.
- Ravi invests Rs. 'x' in scheme X and Rs. (x + 600) in scheme Y for 4 years each. Schemes X and Y offer simple interest at 12% p.a. and 8% p.a. respectively...
- Aman invested a total of Rs. 85,000 in two schemes—one offering 12% annual compound interest and the other offering 14% annual simple interest. If the to...
Calculate the total interest earned after 2 years on an investment of Rs. 2,500, with an annual compound interest rate of 20%, compounded annually.
Relevant for Exams:
