The sides of a rectangle are in ratio 7 : 6. If its area is 378 cm2, find the ratio of its perimeter to its area.
A fruit seller sold three varieties of fruits at the rate of Rs 20, Rs 25 and Rs 27. If the quantity of the fruits sold were in the ratio 1 : 2 : 5 find the average rate of the fruits.
Rohit borrows ₹ 400 at the rate of 5% per annum simple interest and Abhishek borrows ₹ X at the rate of 4% per annum simple interest. After 15 years their amount of debt. becomes equal. Find X.
A scheme offers compound interest at the rate of 5% pa, compounded half-yearly. If a man invests ₹ 14000 each on 1st January and 1st July, what will be the total interest earned by him at the end of the year?
The ratio of income of A & B one year ago was 2 : 3. The ratio of their last year income to current year income are 3 : 5 & 4 : 5. If their total current year income is Rs 17,000. Find the current year income of A.
A sum of money becomes of it in 2 years at a certain rate of simple interest. Find the rate per annum.
What sum of money, considering simple interest, will amount to ₹ 896 in 3 years, and ₹ 960 in 5 years?
Equal sum of money are lent to A and B at 2.7% per annum simple interest for 2 and 4 years respectively. If the difference in interest paid by them is ₹ 135, find the sum that was lent to each.
A is inversely proportional to the square of B. If A = 9, then B , find B when A = 3.
Find the number that can be added to each of the numbers 5, 7, 12, 15 to make them in proportion.
