Exams Questions and Answers

Q:

Karan started a business investing Rs 29000. After five months, Satish joined with a capital of Rs 18000. If at the end of the year, they earn a profit of Rs. 16970, then what will be the share of Satish in the profit ?

A) Rs. 5422	B) Rs. 5489
C) Rs. 4511	D) Rs. 6145

Answer & Explanation Answer: C) Rs. 4511

Explanation:

Now as per question, Karan invested for 12 months and Satish invested for 7 months.

So, Karan:Satish = (29000 x 12):(18000 x 7)

= 348:126

= 58:21

Satish Ratio in profit will be= $16970 \times \frac{21}{79}$ = Rs. 4511

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Filed Under: Partnership
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13 18338

Q:

The _____ controls communications for the entire computer system

A) arithmetic-logic unit	B) semiconductor
C) motherboard	D) coprocessor

Answer & Explanation Answer: C) motherboard

Explanation:

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Filed Under: Computer
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69 18323

Q:

Find the area of a square, one of whose diagonals is 3.8 m long

A) 7.22	B) 6.22
C) 4.22	D) 3.22

Answer & Explanation Answer: A) 7.22

Explanation:

Area of the square = $\frac{1}{2} * {(d i a g o n a l)}^{2} = \frac{1}{2} * 3.8 * 3.8 = 7.22 m^{2}$

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Filed Under: Area
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16 18318

Q:

Select the missing number from the given responses?

A) 6	B) 9
C) 7	D) 8

Answer & Explanation Answer: C) 7

Explanation:

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Filed Under: Arithmetical Reasoning
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0 18317

Q:

NH3 oxidation number?

A) -1	B) +1
C) 0	D) -3

Answer & Explanation Answer: C) 0

Explanation:

NH3, Ammonia is a neutral compound as the individual oxidation numbers elements that make up the compound NH3 are Nitrogen (N) and Hydrogen (H) sum to zero.

We do not speak of the oxidation number of a molecule. We can speak of the oxidation numbers of the individual elements that make up the compound.

Here the oxidation number of Nirogen is -3 and that of Hydrogen is +1.

Now, NH3 = 1(-3) + 3(+1) = -3 + 3 = 0.

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Filed Under: Chemistry
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31 18311

Q:

A cube is painted blue on two adjacent surfaces and black on the surfaces opposite to blue surfaces and green on the remaining faces .Now the cube is cut into 216 smaller cubes of equal size.

A) 56	B) 48
C) 32	D) 64

Answer & Explanation Answer: D) 64

Explanation:

We know that Cubes with no surface painted can be find using ${(x - 2)}^{3}$ , where x is number of cuttings. Here x=6.

$∴ {(6 - 2)}^{3} = 64$

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Filed Under: Cubes and Dice
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63 18308

Q:

Arrange the following words as per order in the dictionary.

1.Launch 2. Laugh 3. Lattice 4. Latent 5. Latitude

A) 4,5,3,2,1	B) 4,3,5,1,2
C) 4,5,1,2,3	D) 4,5,1,3,2

Answer & Explanation Answer: A) 4,5,3,2,1

Explanation:

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Filed Under: Logical Sequence of Words
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Q:

How many times do the hands of a clock coincide in a day?

A) 20	B) 21
C) 22	D) 23

Answer & Explanation Answer: C) 22

Explanation:

The hands of a clock coincide 11 times in every 12 hours (Since between 11 and 1, they
coincide only once, i.e., at 12 o'clock).

The hands overlap about every 65 minutes, not every 60 minutes.
The hands coincide 22 times in a day.

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Filed Under: Clocks
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