Let speed of boat in upstream and downstream be ‘7x’ km/h and ‘9x’ km/h respectively. 70/7x + 144/9x = 13 10/x + 16/x = 13 26 = 13x x = 2 Speed of boat in still water = (7x + 9x)/2 = 8x = 8 × 2 = 16 km/h Desired time = 180/16 = 11.25 hours
A businessman purchases 20 articles whose cost is equal to the selling price of 15 articles. The profit or loss percentage of the businessman is:
A school bag is sold for Rs.540 after giving two successive discounts of 10% and 20%. If school bag is marked up by Rs.480 above its cost price, then fi...
P purchased a book from registered store and gets 11% discount while Q purchased the same book from a roadside stall and got 17% discount. If Q paid Rs....
Rahul purchased a car for Rs 1,30,000 and spent Rs 6000 on transportation and 15% of its cost on repair. At what price should he sell it so as to earn a...
The selling price of 5 bags is equal to the cost price of 8 bags. Find the percentage of profit earned on selling a bag.
Profit percentage received on a product when sold for Rs. 240 is equal to the percentage loss incurred when the same product is sold for Rs. 240. Find t...
A man bought two articles for $800 each. He sold one at a profit of 20% and the other at a loss of 25%. What is the overall profit or loss percentage?
A shopkeeper sold three types of items A, B and C. He sold items A and B in the ratio of 16:21, while sold items C and A in the ratio of 5:8. The pri...
A shopkeeper sold two articles for Rs. 3588 each. One article is sold at a profit of 15% while another one is sold at a loss of 20%. What will be the su...
A shopkeeper marked an article 60% above its cost price and made a profit of Rs. 192 when he sold the article after giving a discount of 30%. Find the p...
