Question
A shopkeeper offers a 10% discount on an article and
still manages to earn a 12% profit. If the marked price of the article is Rs. 2800, calculate the cost price of the article.Solution
Let, the cost price of the article be Rs. x Selling price of the article = 112% of x = 28x/25 Also, the selling price of the article = 90% of 2800 = Rs. 2520 So, 28x/25= 2520 x = (2520 × 25)/28 x = Rs. 2250
A man can row 32 km/hr in still water. It takes him thrice as long to row up as to row down the river. Find the rate of the current.
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Speed of a boat in still water is 20 km/h while the speed of stream is ____ km/h. Total time taken by the boat to go 200 km upstream and 300 km downstre...
A boat goes 40 km in upstream in 5 hours and takes 3 hours to complete a distance of 18 km in downstream. Find the speed of boat in still water.
A boat can row to a place of 60km away and come back inÂ
Speed of boat is 10 km/hr. Speed of the stream is 20% less than speed of boat. Then find time taken by boat to go 54 km downstream?
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