## Multiple choice

Which of the following cannot be an integer if the integer k is a multiple of 12 and a multiple of 9. (a) K/3 (b) K/4 (c) K/10 (d)...

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## Probability

How many times a man must toss a coin, so that the probability of having at least one head is more than 80% ?

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## What is the length of BC?

In the figure, A, B, C, and D are the points on the line in that order. If AC=5, BD=10 and AD=13, then what is the length of BC?...

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## What is the area of the Circle whose diameter is AB?

A and B are the centers of two circles that touch each other externally, as shown in the figure. What is the area of the Circle whose diameter is...

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## What percentage of student answering correctly?

If 75 percent of a class answered the first question on a certain test correctly, 55 percent answered the second question on the test correctly, and 20 percent answered...

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## How many typist needed?

If two typists can type two pages in two minutes how many typists will it take to type 18 pages in six minutes? (a) 3; (b) 4 ; (c)...

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## Parallelogram

PQRS is a parallelogram and ST = TR. What is the ratio of the area of triangle QST to the area of the parallelogram?

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## Fluid Mechanics

Find the height of the free surface if of water is poured into a conical tank 20 in high with base radius 10 in. How much additional water...

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## Similar triangles

In the figure given, BC is parallel to DE. Area of triangle ABC =25 , area of trapezium BCED = 24 , DE = 14 cm. Calculate the length of...

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## Electromagnetics

Find the energy stored in the system of 4 identical charges of 4 nC each placed at the corners of a square of side 1 meter.

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## Angles of elevation and depression

A block of flats is 200 m away from a cellphone tower. Someone stands at B. They measure the angle from B to the top of the tower E...

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## Determine x and y

In △TQP, SR∥QP, SQ=12 cm and RP=15 cm. If TR=x/3, TP=x and TS=y, determine the values of x and y, giving reasons.

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## Find Area of right triangle

Given Equation AO y=2x, BO y=(1/3)x , and C pass through (5,5). What is area of right angle triangle AOB?

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## Probability

Deepak rolls two dices and gets a sum more than 9. What is the probability that the number on the first dice is even ?

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## Find area of Shape

Given, A = 90, B = 90, D = 90. AD = 15, AB = 20, CD = 8, BE = 10 . Find total area of ABCD.

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## Find angle ABC value?

In given triangle, what is the value of ABD? Given, ADB = 10, ACB = 20, ACD = 60, BDC = 70 .

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## Find value of b in given funtion

Consider the above three functions. If x, y is (4,6), then what is the value of b ?

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