Question
If a man walks at 7/8 of his usual speed, he reaches his
office 20 minutes later than the usual time. Find the usual time he takes (in minutes).Solution
New speed: Usual speed = 7:8 So, New time: Usual time = 8:7 Let the New time and Usual time be 8x and 7x respectively. According to the question, 8x-7x = 20 minutes  x = 20 minutes Now, The usual time = 7x = (7 x 20) minutes =140 minutes The required usual time is 140 minutes.
- Ramesh's monthly earnings were reduced from Rs. 28,400 to Rs. 21,984. What is the approximate percentage decrease in his earnings?
If y exceeds x by 15 % then x is less than y by what percent?
- In an election between two candidates X and Y, 12% of all votes were declared invalid. Candidate X secured 60% of the valid votes. If candidate Y got 17,13...
The population of a town increases by 10% in the first year and by 20% in the second year. If the population at the end of two years is 39,600, find the...
The monthly incomes of persons A and B are ₹4800 and ₹6400, respectively, while their monthly expenditures are ₹3600 and ₹5400. What is the rati...
The marked price of an article is 30% higher than the cost price. If a trader sells the articles allowing 10% discount to customer, then the gain percen...
The sum of the original incomes of ‘P’ and ‘Q’ is Rs. 90000. If the income of ‘P’ had been Rs. 30000 more, then his income would have been 5...
The income of Tina is Rs.26000 and she saves 30% of her income. The savings of Kajal is Rs.3000 more than that of Tina and she spends 60% of her income....
Deepa scored 42% marks and failed by 84 marks, whereas Aman scored 72% marks, which was 96 marks more than the passing marks. Find the total marks of th...
'R' spends 30% of his monthly income on utilities, 35% on household expenses, and 10% of the remaining amount on transportation. He saves the rest in a ...
Relevant for Exams:
