Question
28 percent of a number and 40 percent of another number
are in the ratio 7: 8. What is the ratio of 50 percent of the first number to 75 percent of the second?Solution
Let the first number be ‘x’ and the second number be ‘y’. According to question, => 0.28x/0.4y = 7/8 => 0.7x/y = 7/8 => x/y = 5/4 Required ratio = 2.5 : 3 = 5:6
- If Rs. 80,000 is invested at 9% per annum simple interest for 6 years, how much amount will be received in the end?
Rs. (n + 150) invested on simple interest amounts to Rs. 1,950 and Rs. 2,250 in 3 years and 5 years, respectively. Find the value of 'n'.
Suppose 'S' invested Rs. 40,000 each at 12% p.a. in two different Funds for 2 years, with one Fund offering compound interest (compounded annually) and ...
Ravi invests Rs. 'p' in Scheme 'X' and Rs. (p + 3,000) in Scheme 'Y'. Scheme X gives simple interest at 10% per annum for 24 months, while Scheme Y offe...
Rs. (4x + 200) is invested at a simple interest rate of 18% per annum, earning an interest of Rs. 2160 after 4 years. Calculate the interest earned when...
Vikram had Rs. 9500 with him. He invested 35% of the sum at 11% p.a. and the rest at 16% p.a., both at simple interest for 4 years each. Find the total ...
Divide Rs 2,760 in to two parts such that when these are invested for 2 and 4 years, respectively, at the rate of 5% per annum simple interest, the amou...
Rs. 9,000 is invested in scheme βAβ offering simple interest of 20% p.a. and Rs. 6,500 in scheme βBβ offering simple interest of 8% p.a. What is...
1000 rupees is invested in a scheme p.a. simple interest. Another amount (1000 – x) is invested in scheme B at 2R% p.a. simple interest. After 5 y...
- Priya invested Rs. 5,500 in scheme βCβ offering simple interest of 12% p.a. After 5 years, she reinvested the interest earned in scheme βDβ offerin...