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Q:

The ratio between present ages of Renuka and Sony is 5 : 4 . 4 years ago, Sony's age was 24 years. What will be Renuka's age after 5 years ?

A) 25	B) 30
C) 35	D) 40

Answer & Explanation Answer: D) 40

Explanation:

Present age of Sony = 24 + 4 = 28 years

After 5 years Renuka's age = 7×5 + 5 = 40 years

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Filed Under: Problems on Ages
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Q:

The book "Two Year Eight Months and Twenty –Eight Night" is authored by

A) Salman Rushdi	B) Deepak Nayyar
C) Javier Moro	D) Khurshid M Kasuari

Answer & Explanation Answer: A) Salman Rushdi

Explanation:

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Filed Under: Books and Authors
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Q:

Rearrange the following sentences (A), (B), (C), (D), (E) and (F) in the proper sequence to form a meaningful paragraph, then answer the questions given below them.

(A) But those apps are just a hint of what this Internet behemoth offers

(B) Gmail, Google maps, and Blogger are used widely.

(C) By now, most know that Google is about far more than search.

(D) Under the hood of its famous search engine. (F) You may not know about, but probably should

(E) Here’s a rundown of some useful Google gems that

A) DECBFA	B) EDCFBA
C) BCDAEF	D) DCEBFA

Answer & Explanation Answer: B) EDCFBA

Explanation:

The rearranged sentences are ::

(D) By now, most know that Google is about far more than search.(C) Gmail, Google maps, and Blogger are used widely.(B) But those apps are just a hint of what this Internet behemoth offers (E) under the hood of its famous search engine.(A) Here’s a rundown of some useful Google gems that (F) you may not know about, but probably should.

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Filed Under: Deriving Conclusions From Passages
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Q:

A decision committee of 5 members is to be formed out of 4 Actors, 3 Directors and 2 Producers. In how many ways a committee of 2 Actors, 2 Directors and 1 Producer can be formed ?

A) 18	B) 24
C) 36	D) 32

Answer & Explanation Answer: C) 36

Explanation:

Required Number of ways = $4 C_{2} \times 3 C_{2} \times 2 C_{1} = 36$ = 36

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Filed Under: Permutations and Combinations
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Q:

A mixture contains 25% milk and rest water. What percent of this mixture must taken out and replaced with milk so that in mixture milk and water may become equal.

A) 31.8%	B) 31%
C) 33.33%	D) 29.85%

Answer & Explanation Answer: C) 33.33%

Explanation:

Now, take percentage of milk and applying mixture rule

25 100

50

50 25 = 2 : 1

Hence required answer = 1/3 or 33.33%

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Filed Under: Alligation or Mixture
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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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Filed Under: Problems on Ages
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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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Filed Under: Problems on Trains
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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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Filed Under: Percentage
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