For the following questions answer them individually
An article has marked price of Rs 6800. If two successive discounts of 12% and 20% are given, then what will be the selling price (in Rs)?
Shopkeeper sold big, medium and small sized chairs for Rs 650, Rs 500 and Rs 400 respectively. The total number of chairs sold were in the ratio 8 : 13 : 4. What is the average cost (in Rs) of a chair?
If $$u : v : w = 1 : 5 : 13$$, then what will be the value of $$\frac{(3u + 2v + 4w)}{(2w - u - 4v)}$$ ?
There would be 20% loss if a toy is sold for Rs 11.20. At what price (in Rs) the toy should be sold to earn a profit of 10%?
If the cost price of an article is 80% of the selling price, then what is the profit percent?
A train crosses a platform in 50 seconds travelling with a speed of 72 km/hr. If the length of the train be 250 metres, then what will be the length (in metres) of the platform?
Speed of a boat is 8 km/hr in still water and the speed of the stream is 2 km/hr. If the boat takes 8 hours to go to a place and come back, then what is the distance (in km) of the place?
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