Monthly Archives: February 2026

Parts of Parabola Conic Section

Posted on February 17, 2026 by Sumant Sumant
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Grapes and Raisins

Posted on February 15, 2026 by Sumant Sumant

Grapes are 80% water (by weight) and raisins are 20% water by weight. If we start with 500 grams of grapes and remove enough water to turn them into the raisins. Then what could be the weight of the raisins … Continue reading →

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Mathcounts factorial question

Posted on February 15, 2026 by Sumant Sumant

If the expression below equals an integer, what is the smallest possible value of n?

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Given sqrt(5). Find its reciprocal without calculator.

Posted on February 15, 2026 by Sumant Sumant

The square root of 5 is 2.236 to the nearest thousandth. Find to the nearest hundreth.

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Writing Null and Alternative Hypotheses

Posted on February 15, 2026 by Sumant Sumant

Notice for Hypothese we use and and Null Hypotheses is about no change.

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MOEMS problem on clock showing the correct time once again

Posted on February 14, 2026 by Sumant Sumant

A twelve hour clock loses 1 minute every hour. Suppose it shows the correct time now. What is the least number of hours from now when it will again show the correct time?

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AMC 8 problem on Average miles per gallon of Car traveling with 6 gallons less than full tank and returning with full tank

Posted on February 14, 2026 by Sumant Sumant

At the beginning of a trip, the mileage odometer read 56,200 miles. The driver filled the gas tank with 6 gallons of gasoline. During the trip, the driver filled his tank again with 12 gallons of gasoline when the odometer … Continue reading →

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Among first 99 number how many have terminating decimal in their reciprocal form

Posted on February 14, 2026 by Sumant Sumant

How many positive integers less than 100 have reciprocals with terminating decimal representations?

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Simple Random Sample

Posted on February 14, 2026 by Sumant Sumant
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Identifying Sampling Methods

Posted on February 14, 2026 by Sumant Sumant
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