Question
What sum of money must be given at simple interest for 3
months at 4% per annum in order to earn Rs. 240 interest?Solution
Let the sum of money be Rs. P. SI = Rs. 240, T = 1/4 year and R = 4% SI = (P × R × T)/100 ⇒ 240 = P × (4/100) × (1/4) ⇒ P = Rs. 24000
A student multiplied a number by 8/5 instead of 5/8. What is the percentage error in the calculation?
Pawan has some money left after spending 20%, 15% and 30% of monthly salary on rent, electricity and shopping respectively. The remaining money with Paw...
In a school with 2,400 students, 45% of the students prefer indoor games, while the remaining students prefer outdoor games. Among those who prefer indo...
A man invested all his current month income in starting of a new business in which he spends 40% in advertisement 30% of remaining in furniture 20% of r...
The marks scored by a boy in three subjects are in the ratio 4 : 3 : 2. Boy scored an overall aggregate of 60% in the exam. If the maximum marks in each...
The population of a town in 2019 was (x + 9000). It increased by 10% in the first year and by 30% in the second year. The population of the town in 2021...
Out of 3200 people in a village, 85% are males, and 15% of them are literate. If the total literacy rate of the village is 25%, what percent of females...
A man invested all his current month income in starting of a new business in which he spends 30% in advertisement 15% of remaining in furniture 20% of r...
A scored 38% marks and failed by 40 marks whereas B scored 68% marks, which was 50 more than the passing marks of the examination. Find the total marks ...
A trader allows a discount of 18% on the marked price of an article. How much percentage above the cost price must he mark it so as to get a profit of 6...
Relevant for Exams:
