AIEEE Questions and Answers with Explanation

Q:

A train travelling with a speed of 60 km/hr catches another train travelling in the same direction and then leaves it 120m behind in 18 seconds. The speed of the second train is

A) 42 kmph	B) 72 kmph
C) 36 kmph	D) 44 kmph

Answer & Explanation Answer: C) 36 kmph

Explanation:

Given speed of the first train = 60 km/hr = 60 x 5/18 = 50/3 m/s

Let the speed of the second train = x m/s

Then, the difference in the speed is given by

$\frac{50}{3} - x = \frac{120}{18}$

=> x = 10 m/s

=> 10 x 18/5 = 36 km/hr

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Filed Under: Problems on Trains
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21 9572

Q:

Which is the smallest district of India by size ?

A) Mahe	B) Zila
C) Kaushambi	D) None

Answer & Explanation Answer: A) Mahe

Explanation:

Mahe is the smallest district of India in size which is in Puducherry.

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Filed Under: Indian Geography
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24 9567

Q:

For Galvanizing Iron which of the following Metals is used?

A) Zinc	B) Lead
C) Aluminium	D) Copper

Answer & Explanation Answer: A) Zinc

Explanation:

For_Galvanizing_Iron_which_of_the_following_Metals_is_used1556263648.jpg image

For_Galvanizing_Iron_which_of_the_following_Metals_is_used1556263660.png image

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Filed Under: General Science
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20 9559

Q:

Which among the following is a folk dance of India?

A) Garba	B) Kathakali
C) Manipuri	D) Mohiniattam

Answer & Explanation Answer: A) Garba

Explanation:

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Filed Under: Indian Culture
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61 9557

Q:

Which acid is produced when milk gets sour?

A) Lactic acid	B) Acetic acid
C) Tartaric acid	D) Butyric acid

Answer & Explanation Answer: A) Lactic acid

Explanation:

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Filed Under: Chemistry
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11 9548

Q:

What should come in place of x in the following equation?

$\frac{x}{\sqrt{128}} = \frac{\sqrt{162}}{x}$

A) 13	B) 12
C) 17	D) 16

Answer & Explanation Answer: B) 12

Explanation:

$\frac{x}{\sqrt{128}} = \frac{\sqrt{162}}{x}$

Then x² = $\sqrt{162} x \sqrt{128}$

= Sqrt of 8² x 6² x 3²

= 8 x 6 x 3

x² = 144.

x = 12.

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Filed Under: Square Roots and Cube Roots
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8 9547

Q:

Total number of students in 3 classes of a school is 333 . The number of students in class 1 and 2 are in 3:5 ratio and 2 and 3 class are 7:11 ratio . What is the strength of class that has highest number of students ?

A) 125	B) 155
C) 135	D) 165

Answer & Explanation Answer: D) 165

Explanation:

Ratio C1:C2 = 3:5 and C2:C3 = 7:11
So C1:C2:C3 = 21 : 35 : 55
Let the strength of three classes are 21x, 35x and 55x respectively, then
Given that 21x + 35x + 55x = 333
=> 111x = 333 or x=3
So strength of the class with highest number of students =55x = 55x3 = 165.

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Filed Under: Ratios and Proportions
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10 9539

Q:

A man pays Rs. 6.40 per litre of milk. He adds water and sells the mixture at Rs. 8 per litre, thereby making 37.5% profit. The proportion of water to milk received by the customers is

A) 1 : 10	B) 10 : 1
C) 9 : 11	D) 11 : 9

Answer & Explanation Answer: A) 1 : 10

Explanation:

Customer ratio of Milk and Water is given by

Milk :: Water

6.4 0

$\frac{8}{1 + \frac{3}{8}} = \frac{64}{11}$

$\frac{64}{11}$ $\frac{64}{10} - \frac{64}{11}$

=> Milk : Water = 110 : 11 = 10 : 1

Therefore, the proportionate of Water to Milk for Customer is 1 : 10

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Filed Under: Alligation or Mixture
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29 9529

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