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

At an election 2 candidates are participated and a candidate got 20% of votes and defeated by 500. and 10 votes are invalid.

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If a certain sample of data has a mean of 24.0 and a standard deviation of 3.0, which of the following values is more than 2.5 standard deviations from the mean?

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The H.C.F of two numbers is 17 and their L.C.M is 5134.

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The speed at which a girl can row a boat in still water is 75 kmph.

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A man can do a piece of work in 6 days, but with the help of his son he can do it in 3 days.

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6/7 of a certain number is 96.

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Using all the letters of the word "HEAD", how many words can be formed, which begin with H and end with D?

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One side of a rectangular field is 13 m and one of its diagonal is 17 m.

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How many positive integers of three different digits, each less than 400 can be formed from the digits 1, 2, 3, 4, 5 and 6?

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rahul played weel in this season.his current batting averagge is 51.if he score 69 runs in today match.his batting average will become 54.how many matches had he played in this season.

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A train 360 m long is running at a speed of 45 km/hr.

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Elena purchased Brand X pens for $5.00 apiece and brand Y for $2.80 apiece.

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A reduction of 40% in the price of oil enables a house wife to obtain 5kgs more for Rs.800, what is the reduced price for kg?

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How many figures are required to number the pages the pages of a book containing 365 pages?

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Two trains of length 100 m and 200 m are 100 m apart.

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The average (arithmetic mean) of a normal distribution of a school's test scores is 65, and standard deviation of the distribution is 6.5.

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Question: What is the remainder when T=(1!)!

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Billy lives in a town in which 75% of pets are dogs.

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What is the dividend? The divisor is 800, the Quotient is 594, and the Remainder is -968.

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A certain sum of money at simple interest amounted Rs.800 in 12 years at 3% per annum, find the sum?

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A salt solution contains 15 grams of salt per 1000 cubic centimeters of solution.

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In how many seconds will a train 150 meters long pass an oak tree, if the speed of the train is 36 km/hr?

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A truck covers a distance of 360 km at a certain speed in 8 hours.

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George went to a fruit market with certain amount of money.

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