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Length of smaller train = 350 metre Speed of smaller train = 43.2 × (5/18) = 12 m/s Length of bigger train = 387 metres Speed of bigger train = 90 × (5/18) = 25 m/s Since, the smaller train is completely obscured by larger train, therefore, extra length of larger train = 387 – 350 = 37 metres Relative speed of trains ‘A’ and ‘B ‘= 12 + 25 = 37 m/s (Since, the trains are running in opposite direction) Required time = 37/37 = 1 second
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A sells an article to B at a profit of 20% and B sells it to C at a profit of 20%. If C pays ₹504 for it, what was the cost price for A?
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If a shopkeeper hikes the purchasing value of an item by 56% and gives it a discount of 56% on the face value for selling it, then know the total percen...
A shirt is marked 50% above the cost price and sold after a discount of Rs.115 at Rs.545. Find the cost price of the shirt.
A merchant possesses 60 identical items, each marked up by 180% above the cost price. He sells 30 of these items at a 25% discount and the remaining 30 ...
A shopkeeper obtained an accessory for Rs. ‘a’ and marked it 170% above its cost price, then sold it after offering two successive discounts of 1000...