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8371.2 + 2 − 2 × 2 + 2 = ?
8372.Two trains are moving in opposite directions at 60 km-hr and 90 km-hr. Their lengths are 1.10 km and 0.9 km respectively. What is the time taken by the slower train to cross the faster train in seconds?
8373.A jogger running at 9 kmph alongside a railway track in 240 metres ahead of the engine of a 120 metres long train running at 45 kmph in the same direction. In how much time will the train pass the jogger?
8374.If q=5r-s ,than what is the value of r in terms of q and s?
8375.(8x^2 + 5x - 7) + (3x^2 - 7x - 9)?
8376.Running at the same constant rate, 6 identical machines can produce a total of 270 bottles per minute. At this rate, how many bottles could 10 such machines produce in 4 minutes?
8377.A number consists of 3 digits whose sum is 10. The middle digit is equal to
8378.To gain 10% on selling a sample of milk at the cost price of pure milk the quantity of water to be mixed with 50 kg of pure milk is
8379.A number when multiplied by 13 is increased by 180. The number is
8380.The difference between a two-digit number and the number obtained by interchanging the position of its digits is 36. what is the difference between the two digits of that number?