Let, the speeds of boat ‘A’ and boat ‘B’, in still water and the speed of the current be 7x km/hr, 5x km/hr and 2x km/hr, respectively. According to the question, (7D – 40)/(7x + 2x) = (D + 70)/(5x – 2x) Or, 21D – 120 = 9D + 630 Or, 12D = 750 Or, D = 62.5
Rahul was employed by a company in 2021 with a starting net salary of Rs. 25,000. By 2024, his gross salary had risen to Rs. 63,000. Assuming his net sa...
If the price of petrol rises by 20%, what percentage reduction in consumption is required to keep the expenditure unchanged?
A invested a certain amount in Debt and Equity mutual funds in the ratio of 3: 7 respectively. At the end of one year, he earned a total dividend of 30%...
In an election between two candidates Abhay and Bharti, Abhay got 55% of the total valid votes, 20% of the total votes were invalid. If the total number...
The number of boys and girls in a school is 220 and 300 respectively. 15% of boys left the school while 30 girls took admission in the school. Find the ...
The total number of students in a college is 13,200. If the number of male students increases by 30% and the number of female students increases by 20% ...
Two students appeared in an exam and one secured 10 marks more than the other. If marks of student who got more marks is 52% of the sum of the marks of ...
A reduction of 20% in the price of cinema tickets would enable me to see 15 movies more for Rs. 1200. Find the original price of one ticket.
A and B have incomes in the ratio of 5:6. A spends 30% of his income and manages to save Rs. 17,500. Based on this information, calculate the income of B.
If the student scores 30% marks, then he is failed by 200 marks. But if he scores 50% marks then he is passed by 230 marks. Find the passing percentage....
