Exams Questions and Answers

Q:

Two cylindrical buckets have their diameters in the ratio 3:1 and their heights are as 1: 3. Find the ratio of their volumes.

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

Answer & Explanation Answer: B) 3:1

Explanation:

$\frac{v 1}{v 2} = \frac{{(r_{1})}^{2} \times h 1}{{(r_{2})}^{2} \times h 2}$

d1 = $2 r_{1}$ and d2 = $2 r_{2}$ are diameters

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Filed Under: Volume and Surface Area
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2 5055

Q:

Consider the given argument and decide which of the given assumptions is (are) implicit.

Argument :

Due to water crisis in the city, the authority had asked all the citizens to reduce their water consumption by 25%.

Assumptions:

1. Many citizens may reduce their water consumption.
2. Many activists may protest to this advisory by the authority.

A) Neither 1 nor 2 is implicit	B) Only assumption 1 implicit
C) Only assumption 2 implicit	D) Both 1 and 2 are implicit

Answer & Explanation Answer: B) Only assumption 1 implicit

Explanation:

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Filed Under: Statement and Assumptions
Exam Prep: Bank Exams

0 5055

Q:

Joel travels the first 3 hours of his journey at 60 mph speed and the remaining 5 hours at 24 mph speed. What is the average speed of Joel's travel in kmph ?

A) 38 kmph	B) 40 kmph
C) 60 kmph	D) 54 kmph

Answer & Explanation Answer: C) 60 kmph

Explanation:

Average speed = Total distance / Total time.

Total distance traveled by Joel = Distance covered in the first 3 hours + Distance covered in the next 5 hours.

Distance covered in the first 3 hours = 3 x 60 = 180 miles
Distance covered in the next 5 hours = 5 x 24 = 120 miles

Therefore, total distance traveled = 180 + 120 = 300 miles.

Total time taken = 3 + 5 = 8 hours.

Average speed = 300/8 = 37.5 mph.

we know that 1 mile = 1.6 kms

=> 37.5 miles = 37.5 x 1.6 = 60 kms

Average speed in Kmph = 60 kmph.

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Filed Under: Time and Distance
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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2 5054

Q:

What is the capital of the country Turkmenistan ?

A) Dushanbe	B) Ashgabat
C) Bishkek	D) Astana

Answer & Explanation Answer: B) Ashgabat

Explanation:

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Filed Under: World Geography
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10 5052

Q:

$10,000 face value strip bond has 15 years remaining until maturity. If the prevailing market rate of return is 6.5% compounded semiannually, what is the fair market value of the strip bond?

A) 1710.29	B) 2710.29
C) 3710.29	D) 4710.29

Answer & Explanation Answer: C) 3710.29

Explanation:

i=j/m

n =m(Term) = 2(15.5) =31

Fair market value Present value of the face value

=FV(1+ i)^-n

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Filed Under: Compound Interest
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4 5052

Q:

Find the one which does not belong to that group ?

A) Mirage	B) Pond
C) Oasis	D) Fountain

Answer & Explanation Answer: A) Mirage

Explanation:

Except mirage, all others are sources of water.

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Filed Under: Analogy
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5 5050

Q:

A flagstaff 17.5 m high casts a shadow of length 40.25 m. What will be the height of a building, which casts a shadow of length 28.75 m under similar conditions ?

A) 14 cm	B) 13.5 cm
C) 12.5 cm	D) 11.4 cm

Answer & Explanation Answer: C) 12.5 cm

Explanation:

Let the required height of the building be x meter

More shadow length, More height(direct proportion)

Hence we can write as

(shadow length) 40.25 : 28.75 :: 17.5 : x
⇒ 40.25 × x = 28.75 × 17.5
⇒ x = 28.75 × 17.5/40.25
= 2875 × 175/40250
= 2875 × 7/1610
= 2875/230
= 575/46
= 12.5 cm

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Filed Under: Height and Distance
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17 5049

Q:

The average score of boys in an examination in a school is 81 and that of the girls is 83 and the average score of the school is 81.8. Then what will be ratio between the number of girls to the number of boys, in the examination?

A) 3:2	B) 2:3
C) 4:3	D) 3:4

Answer & Explanation Answer: B) 2:3

Explanation:

Let the number of boys = b

Let the number of girls = g

From the given data,

81b + 83g = 81.8(b + g)

81.8b - 81b = 83g - 81.8g

0.8b = 1.2g

b/g = 1.2/0.8 = 12/8 = 3/2

=> g : b = 2 : 3

Hence, ratio between the number of girls to the number of boys = 2 : 3.

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Filed Under: Average
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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24 5049

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