Q&Answers: Math/Chemistry/Physics Problems + Solutions

A 270m long train running at the speed of 120kmph crosses another train running in opposite direction at the speed of 80kmph in 9 second.

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A sum of 15,600 amounts to 21,200 in 5 years at the rate of simple interest.

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(540 + ?) × 3/5 - 120 = 483

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Lilly has 10 fish and Rosy has 14 fish.

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What quantity of water should be added to reduce 20 liters of 80% acidic liquid to 20% acidic liquid?

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Ashis's height is 25% more than Babji, by how much percent Babji's height is less than Ashis.

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A bullet train 140 m long is running at 60 kmph.

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Incomes of two companies A and B are in the ratio of 5 : 8.

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If N is the least positive integer that is divisible by every integer from 3 to 10 inclusive, then N/7 is =

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If A got 70 marks and B got 60 marks, then what percent of A's mark is B's mark?

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A male leader is to be selected from a class of students having 15 boys and 20 girls.

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How many seconds will a 500 meter long train moving with a speed of 63 km/hr, take to cross a man walking with a speed of 3 km/hr in the direction of the train ?

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Kid have 8 black balls and 8 white balls.

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If √x = x, then which of the following must be true?

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Andrew started saving at the beginning of the year and had saved $240 by the end of the year.

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The total age of A and B is 12 years more than the total age of B and C.

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In an effort to plan out expenses, the Roberts family is representing its annual budget as a circle graph.

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In an automobile market of spare parts dealers and workshops, average earning of a spare parts dealer per day is $520 and the average earning of a workshop is $700.

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A certain automobile company’s best-selling model is the Speedster.

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The difference between the place values of two sevens in the numeral 69758472 is

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36 * 36 * 36 = 6^ ?

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What is the ratio between perimeters of two squares one having 1.5 times the diagonal then the other?

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Arun purchased 30 kg of wheat at the rate of Rs.

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If x and y are both odd prime numbers andx < y, then how many different positive integer factors does2xyhave?

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