## Statistics-Mean

In computing a mean of 8 numbers, a boy mistakenly used 17 instead of 25 as one of the numbers and obtained 20 as mean. Find the correct ...

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## Lengths of sides of triangles

Calculate the length of the sides opposite to the given angle in triangle ABC. B = degBC = 5 cm AB = 8 cm

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## Age problem

If x/2 years ago John was 12 years old, and x/2 years from now he will be 2x years old, what will be his age 3x years from now?

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## Find the angles of cyclic quadrilateral

In the given figure, calculate each of the angles of the cyclic quadrilateral ABCD. Given angle AOD = 64 deg.

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## Inequality- Find least value of Y

If 7+y = |8|, find the least value of y, such that 10<= y <= 30.

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## Find angle BAC

TA and TB are tangents to the circle. If ABC=48°, ATB= 72°,calculate angle BAC.

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## Money double problem

A sum of money triples itself in 20 years. When will it double? Options are: a) 5 years b) 15 years c) 10 years d) 8 years

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## Line equation

If line y= -3x+K is tangent to the circle x^2 +y^2 = 10, find all the possible values of K

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## Arithmetic Progression: Find x and y

If 3, x, y and18 are arithmetic progression (), find x and y.

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## Probability- Even numbers greater than 5000

How many even numbers greater than 5000 can be formed using the digits 1,2,4,5,6. No digits used more than once.

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## Word problem

A garrison of 120 men is provisioned for 24 weeks at 350 gm per day per man. How many men must leave so that the same provision may last...

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## Find the average speed

For the first 100 miles of his trip, Sohan drove at 50 miles/hr. Then because of delays, he drove only 39 miles/hr for next 120 miles. What was his...

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## Logic Time

There was war in a certain village and a man, his wife and two sons were trying to cross to the other side of the river so that they...

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## Exponential

Question source : Facebook que source ( × 10 to power 3)÷(7×10 to the power of-3) -5×10 to the power of-4 + × 10to power of-3 Evaluate the answer...

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## Find the Surface area and volume of the box

Problem source: Source A box has length 15cm,breadth 7cm and height 8cm. Find: (a)its total surface area? (b)its volume?

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## Avg. Monthly income

A man spends Rs. 1600 per month on an average for the first three months, Rs 1550 for next four months and Rs. 1800 per month for the last...

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## SCIENCE

Protective sols are – a) lyophilic b) lyophobic c) both a and b d ) none

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