Exams Questions and Answers

Q:

If $4^{x} = \sqrt[7]{1024}$ , then what is the value of x?

A) 5/7	B) 4/7
C) 3/7	D) 6/7

Answer & Explanation Answer: A) 5/7

Explanation:

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Filed Under: Simplification
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1 59291

Q:

Find the odd man out?

16, 254, 1296, 4096, 10000

A) 16	B) 254
C) 1296	D) 10000

Answer & Explanation Answer: B) 254

Explanation:

The given series 16, 254, 1296, 4096, 10000 follows a pattern that

$2^{4}, 4^{4}, 6^{4}, 8^{4}, 10^{4}, . . .$

Hence, the odd man in the series is 4 x 4 x 4 x 4 = 256 not 254.

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Filed Under: Odd Man Out
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Q:

Find the wrong number in the given number series?

5, 8, 40, 90, 664

A) 8	B) 40
C) 90	D) 664

Answer & Explanation Answer: B) 40

Explanation:

The given number series is 5, 8, 40, 90, 664

5

5 - 1 x 2 = 8

8 - 3 x 4 = 20 (NOT 40)

20 - 5 x 6 = 90

90 - 7 x 8 = 664

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Filed Under: Odd Man Out
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15 59259

Q:

Which of the following statement(s) is/are CORRECT?

I. Acids are sour in taste and generate H+ ions.

II. Acids are sour in taste and generate OH– ions.

III. Bases are bitter intaste and generate OH– ions.

A) Only I and III	B) Only I and II
C) Only II and III	D) All I, II and III

Answer & Explanation Answer: A) Only I and III

Explanation:

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Filed Under: Chemistry
Exam Prep: Bank Exams

2 59243

Q:

Study the following table and answer the questions based on it.

Below is the Household Expenditure (in Thousands Rupees) per annum.

What is the total Household Expenditure for the year 2012?

A) Rs. 89,900	B) Rs. 87,120
C) Rs. 89,100	D) Rs. 88,200

Answer & Explanation Answer: A) Rs. 89,900

Explanation:

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Filed Under: Table Charts
Exam Prep: Bank Exams

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Q:

A person with blood group AB

A) Can donate blood to persons with blood group A, B and O	B) Is called universal blood donor
C) Can receive blood from any group	D) Is neither a universal recipient nor a donor

Answer & Explanation Answer: C) Can receive blood from any group

Explanation:

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Filed Under: Biology
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Q:

If the radius of a circle is decreased by 50%, find the percentage decrease in its area.

A) 55%	B) 65%
C) 75%	D) 85%

Answer & Explanation Answer: C) 75%

Explanation:

Let original radius = R.

New radius = $\frac{50}{100} R$ = $\frac{50}{100} R$

Original area = $\frac{R}{2}$ and new area = ${πR}^{2}$

$\frac{3 {πR}^{2}}{4} * \frac{1}{{πR}^{2}} * 100$

Decrease in area = $π {(\frac{R}{2})}^{2} = \frac{{πR}^{2}}{4}$ = 75%

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Filed Under: Area
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147 59124

Q:

Find the volume (in cm3) of a right circular cone of diameter 7 cm and height 7 cm.

A) 69.06	B) 16.43
C) 11.15	D) 89.83

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