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Q:

The average age of a couple is 24 years when they were married five years ago but now the average age of the husband, wife and child is 20 years(the child was born during the interval). What is the present age of the child ?

A) 2 yrs	B) 4 yrs
C) 3 yrs	D) 5 yrs

Answer & Explanation Answer: A) 2 yrs

Explanation:

29 x 2 = 58
20 x 3 = 60
-----------
2 years

Therefore, the age of child is 2 years.

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Filed Under: Problems on Ages
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Q:

Amar can do a piece of work in 10 days. He works at it for 4 days and then Arun finishes it in 9 days. In how many days can Amar and Arun together finish the work ?

A) 4 days	B) 8 days
C) 3 days	D) 6 days

Answer & Explanation Answer: D) 6 days

Explanation:

4/10 + 9/x = 1 => x = 15

Then both can do in

1/10 + 1/15 = 1/6 => 6 days

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Filed Under: Time and Work
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Q:

In a pot, there is a mixture of milk and water in the ratio 4 : 5. If it is filled with an additional 8 litres of milk, the pot would be full and ratio of milk and water would become 6 : 5. Find the capacity of the pot ?

A) 11 lit	B) 22 lit
C) 33 lit	D) 44 lit

Answer & Explanation Answer: B) 22 lit

Explanation:

Let the capacity of the pot be 'P' litres.
Quantity of milk in the mixture before adding milk = 4/9 (P - 8)
After adding milk, quantity of milk in the mixture = 6/11 P.
6P/11 - 8 = 4/9(P - 8)
10P = 792 - 352 => P = 44.

The capacity of the pot is 44 liters.

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Filed Under: Alligation or Mixture
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Q:

Simplify the following equation

$\frac{[{(K - L)}^{2} - {(K + L)}^{2}]}{4 K}$ = a/b

A) K = b /a	B) bL = -a
C) KL = 1	D) aK = -b

Answer & Explanation Answer: B) bL = -a

Explanation:

$\frac{[(K - L)^{2} - {(K + L)}^{2}]}{4 K} = \frac{a}{b} \frac{(K^{2} + L^{2} - 2 K L) - (K^{2} + L^{2} + 2 K L)}{4 K} = \frac{a}{b}$

=> - 4KL/4K = a/b

=> L = - a/b

=> bL = -a

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Filed Under: Simplification
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Q:

Find the odd one out of the following options.

A) Sapphire	B) Ruby
C) Topaz	D) Granite

Answer & Explanation Answer: D) Granite

Explanation:

Except Granite all other options belong to the group of precious stones.

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Filed Under: Odd Man Out
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Q:

Who is the father of email ?

A) Charles Babbage	B) Ray Tomlinson
C) Tim Berners Lee	D) Paul Buchheit

Answer & Explanation Answer: B) Ray Tomlinson

Explanation:

Email inventor Ray Tomlinson dies at 74. Ray Tomlinson, who sent the first e-mail, has died.

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Filed Under: Computer
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Q:

Majid Gyre is a feature of which of the following Oceans ?

A) Indian Ocean	B) Pacific Ocean
C) Atlantic Ocean	D) Arctic Ocean

Answer & Explanation Answer: A) Indian Ocean

Explanation:

The Indian Ocean consists of one gyre, the Indian Ocean (Majid) Gyre, which exists mostly in the Southern Hemisphere. It is named after Ahmad Bin Majid, the 15th-century Arab mariner. Following shows the Oceans and their respective Gyres

Indian Ocean - Majid Gyre

North Atlantic Ocean - Columbus Gyre

South Atlantic Ocean - Prince Henry Gyre

North Pacific Ocean - Turtle Gyre

South Pacific Ocean - Heyerdahl Gyre

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Filed Under: World Geography
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Q:

Which type of forests occupies the highest percentage of area in India ?

A) Savanna & desert vegetation	B) Tropical deciduous
C) Tropical Rainforests	D) Equatorial evergreen

Answer & Explanation Answer: B) Tropical deciduous

Explanation:

Tropical Deciduous Forests: They are also called the “Monsoon forests”. They grow in the areas with annual rainfall of 70-200 cm. Sandal wood, Shisam, Mahua, Sal, Teak and Bamboo are important species of trees. Moist deciduous and the dry deciduous forests are two major categories of these forests.

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Filed Under: Indian Geography
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