Question
The marks obtained by X and Y in a quiz are in the ratio
7:5 respectively. If Y had scored 5 more marks, then the marks scored by X would be 30% more than that of Y. What is the difference between actual marks scored by X and Y?Solution
Let's take X's marks are 7x and Y's marks are 5x, If Y had scored 5 more marks, Y's new marks would be 5x + 5. According to the question, X's marks (7x) would be 30% more than Y's new marks (5x + 5): 7x = 1.3(5x + 5) 7x = 6.5x + 7.5 0.5x = 7.5 x = 15 Now, we can find X's and Y's actual marks: X's marks = 7x = 7(15) = 105 Y's marks = 5x = 5(15) = 75 The difference between their actual marks = 105 - 75 = 30
Compound interest on a certain sum of money for 2 years is Rs.5160 while the simple interest on the same sum for the same time period is Rs.4800. Find t...
An investment of Rs. 9,600 at an annual interest rate of 'R' percent for three years yields a simple interest of Rs. 5,760. Calculate the compound inter...
The difference between simple and compound interest on Rs 2900 at a certain rate in 2 years is Rs 10.44, then what is the annual rate.
A certain sum of money becomes Rs. 1500 in 1 year and 2800 in 3 years at certain rate of simple interest. Find the sum of money invested.
A invested Rs. ‘x’ in a scheme offering compound interest of 20% p.a. compounded annually. If at the end of 2 years, interest received by A was Rs. ...
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 ...
An equal sum of money is invested in two schemes which offer interest at the same rate but one at simple interest and the other at compound interest (co...
Ajay invested a sum of money, represented as Rs. 'x', in a financial plan that yields a 10% annual compound interest. After three years, the total inter...
Simple interest earned on an amount of Rs.1600 at rate of R% per annum after 4 years is Rs.256. Find the simple interest earned on an amount of Rs.1800 ...
Suresh earned an interest of Rs. 516 on principal amount of Rs. 1600 at some rate of compound interest in 2 years. How much more/less interest would he ...
Relevant for Exams:
