Question
A shopkeeper sold an article for Rs. 200 after offering
a discount of 20%. If he earned a profit of 60%, then find the ratio of cost price to the marked price, of the article.Solution
Marked price of the article = 200 ÷ 0.8 = Rs. 250 Cost price of the article = 200 ÷ 1.6 = Rs. 125 Required ratio = 125:600 = 5:8
A man can row his boat with the stream at 14 km/h and against the stream in 8 km/hours. Find the rate of the stream.
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A boat takes 20 hours to go 200 km upstream. If the boat doubles its speed, it can cover 200 km downstream in 4 hours. Find the speed of the stream.
The ratio between the time taken by a boat to cover a certain distance in upstream and the same distance in downstream is 5:1 respectively. The same boa...
The stream flows at 2 km/h. A boat takes 1 hour more to cover 36 km upstream than it takes to go 40 km downstream. What is the distance the boat can cov...
A boat moving downstream covers a distance of 200km in 5 hrs as long as to cover the same distance upstream it takes 10hrs. What will be the time taken ...
A man rows to a place 42 km away and comes back to the starting point. If the speed of the stream is 2 km/hr and the speed of the boat in still water is...
- In still water, boat ‘X’ is three times as fast as boat ‘Y’. Boats ‘X’ and ‘Y’ are 240 km apart in a stream and are moving towards each oth...
