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A train 100 m long moving at a speed of 50kmph crossed a train 120 m long coming from opposite direction in 6 sec. the speed of second train is?

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when we go away from the earth the temp will rise or low....

Sin³x - sec²x = 1, then (3tan²(5x/2)-1)=?

Neha scored 37%marks and failed by78marks

19:61::21:?

75% of a number is equal to four fifth of another number. What is the ratio between the first number and the second number?

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