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

A man spends Rs. 1900 per month on an average for the first three months, Rs 1550 for next four months and Rs. 1800 per month for the last five months and saves Rs . 5200 a year.

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If a town of 45,000 people is growing at a rate of approx. 1% per year, the population of the town in 5 years will be closest to?

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P can do a certain work in 18 days.

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Determine the value of 3*27/31+81/93

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If it is assumed that 70 percent of those who receive a questionnaire by mail will respond and 300 responses are needed, what is the minimum number of questionnaires that should be mailed?

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If a boat goes 7 km upstream in 42 minutes and the speed of the stream is 6 kmph, then the speed of the boat in still water is :

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The ratio of a to b is 4 to 5, where a and b are positive.

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Jim and Renee will play one game of Rock, Paper, Scissors.

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Cricket match is conducted in US.

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A first grade teacher uses eight playing cards, each numbered from 1 to 8 to teach her students to order numbers correctly.

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Out of first 30 natural numbers, one number is selected at random.

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A computer wholesaler sells six different computers and each is priced differently.

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Ages of two persons differ by 22 years.

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A car traveled 65% of the way from Town A to Town B at an average speed of 65 mph.

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The prices of tea and coffee per kg were the same in june.

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A number x is multiplied with itself and then added to the product of 4 and x.

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The average temperature of the town in the first four days of a month was 57 degrees.

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Tom purchased 8kg of apples at the rate of 70 per kg and 9 kg of mangoes at the rate of 55 per kg.

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A grocer has a sales of Euro 6435, Euro 6927, Euro 6855, Euro 7230 and Euro 6562 for 5 consecutive months.

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The ratio between the sale price and the cost price of an article is 7:4.

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If a is an integer greater than 9 but less than 26 and b is an integer greater than 14 but less than 31, what is the range of a/b?

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Pat, kate and mark charged a total of 198 hours to a certain project .

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My grandson is about as many days as my son in weeks, and my grandson is as many months as I am in years.

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Two numbers are respectively 20% and 60% more than a third number.

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