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Q:

111 13 112 24 113 35 117 ?

A) 46	B) 57
C) 68	D) 79

Answer & Explanation Answer: D) 79

Explanation:

The given puzzle follows a pattern that,

Number - <last digit> <sum of all digits>.

111 - 13

112 - 24

113 - 35

So

117 - 79

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Q:

Largest Mint in India is at

A) Mumbai	B) Hyderabad
C) Noida	D) Kolkata

Answer & Explanation Answer: D) Kolkata

Explanation:

The Largest Mint in India is Kolkata Mint.

Government of India operates 4 Mints in the country for the production of Coins. They are at

Hyderabad, Telangana

Mumbai, Maharashtra

Kolkata, West Bengal

Noida, Uttar Pradesh.

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Q:

Hari Ram’s present age is three times his son’s present age and two fifth of his father’s present age. The average of the present age of all of them is 46 years. What is the difference between Hari Ram’s son’s present age and Hari Ram’s father’s present age?

A) 44 yrs	B) 56 yrs
C) 67 yrs	D) 78 yrs

Answer & Explanation Answer: D) 78 yrs

Explanation:

Let Hari Ram's present age = x

Then, his son's age = x/3

Father's age = 5x/2

$\frac{x + \frac{x}{3} + \frac{5}{2} x}{3} = 46 = > x = 36 yrs$

Now the required difference = $\frac{5}{2} x 36 - \frac{36}{3} = 78 yrs$

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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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Q:

In a college, number of boys is 75% of number of girls. Difference between boys and girls is 35. On a particular day 20% boys were absent, then find the number of boys those who present?

A) 72	B) 84
C) 93	D) 81

Answer & Explanation Answer: B) 84

Explanation:

Ratio of girls and boys = 100% : 75% = 4:3

Difference is 1 unit = 35

So, 3 units = 35 x 3 = 105

If 20% absent, that’s mean 80% present.

So, present boys = 80% of 105 = $\frac{80 \times 105}{100} = 84$

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Q:

The sum of three consecutive odd numbers is 93. What is the middle number?

A) 31	B) 33
C) 29	D) 27

Answer & Explanation Answer: A) 31

Explanation:

Let the three consecutive odd numbers be x, x+2, x+4

Then,

x + x + 2 + x + 4 = 93

=> 3x + 6 = 93

=> 3x = 87

=> x = 29 => 29, 31, 33 are three consecutive odd numbers.

Therefore, the middle number is 31.

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Q:

Which of the following is the strongest acid?

A) ClCH2COOH	B) BrCH2COOH
C) FCH2COOH	D) ICH2COOH

Answer & Explanation Answer: C) FCH2COOH

Explanation:

FCH₂COOH is the strongest acid out of all.

Since the electron withdrawing inductive effect (-I effect) of the halogens decreases in the order of F>Cl> Br> I , therefore the acidic strength of the α- halo acids decreases in the same order.

FCH₂COOH > ClCH₂COOH > BrCH₂COOH > ICH₂COOH.

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Q:

Saliva contains an Enzyme called

Answer

Amylase, also called Ptyalin, which is capable of breaking down starch into simpler sugars such as maltose and dextrin that can be further broken down in the small intestine is the Enzyme present in Saliva.

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