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Q:

Karthik walks at 5 km/hr and reaches his destination 8 min late. If he walks at 6 km/hr, he reaches his destination on time. What distance he will cover in given time ?

A) 10 kms	B) 8 kms
C) 6 kms	D) 4 kms

Answer & Explanation Answer: D) 4 kms

Explanation:

Let the actual distance be t kms

Now, According to the data,

$5 (t + \frac{8}{60}) = 6 t = > 5 (\frac{60 t + 8}{60}) = 6 t = > 60 t + 8 = 72 t = > 8 = 12 t = > t = 8 / 12 = 2 / 3 hrs$

Now, the total distance = 6t = 6 x 2/3 = 2 x 2 = 4 kms.

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Filed Under: Time and Distance
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Q:

Two filling taps P and Q together can fill a tank with rate of 40 lit/min and 60 lit/min respectively in 8 min. If a waste tap can empty the filled tank in 32 min, then what is the rate of waste tap ?

A) 34 lit/min	B) 25 lit/min
C) 22 lit/min	D) 18 lit/min

Answer & Explanation Answer: B) 25 lit/min

Explanation:

Given that the waste tap can empty the filled tank in 32 min.

Now, the rate at which the waste tap can empty the tank = (40 + 60)8/32 = 100/4 = 25 lit/min.

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Filed Under: Pipes and Cistern
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Q:

Three athletes can complete one round around a circular field in 16, 24 and 36 min respectively. They start running together at same instant then after how much time they will meet to each other for first time ?

A) 2 hrs 24 min	B) 2 hrs 44 min
C) 1 hrs 24 min	D) 1 hrs 24 min

Answer & Explanation Answer: A) 2 hrs 24 min

Explanation:

Given that three athletes can complete one round around a circular field in 16, 24 and 36 min respectively.

Now, required time after which they met for the first time = LCM of (16, 24 & 36) min

Now, LCM of 16, 24, 36 = 144 minutes = 2 hrs 24 min.

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Filed Under: Time and Work
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Q:

Which standard govern parallel communications?

A) CAT 5	B) IEEE 1284
C) RS-232	D) None of the above

Answer & Explanation Answer: B) IEEE 1284

Explanation:

IEEE 1284 is a standard that govern parallel communications.

IEEE 1284 is a standard that defines bi-directional parallel communications between computers and other devices.

It was originally developed in the 1970s by Centronics, and was widely known as the Centronics port, both before and after its IEEE standardization.

which_standard_govern_parallel_communications1539064136.jpg image

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Filed Under: Computer
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Q:

Through specialization and international trade, a nation

A) will attain some combination of goods lying inside its production possibilities curve	B) will shift its production possibilities curve towards left
C) can attain some combination of goods lying outside its production possibilities curve	D) will shift its production possibilities curve towards right

Answer & Explanation Answer: C) can attain some combination of goods lying outside its production possibilities curve

Explanation:

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Filed Under: Indian Economy
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Q:

The demand curve shows the relationship between

A) good price and the service	B) quantity demanded and the price of the good
C) quality and quantity of the good	D) quality and price of the good

Answer & Explanation Answer: B) quantity demanded and the price of the good

Explanation:

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Filed Under: Indian Economy
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Q:

Wind and solar energy are examples of

A) renewable	B) non renewable
C) Both A & B	D) None of the above

Answer & Explanation Answer: A) renewable

Explanation:

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Filed Under: General Science
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Q:

The goal of a command economy is to

A) create equality within a society	B) mixed-market
C) Both A & B	D) None of the above

Answer & Explanation Answer: A) create equality within a society

Explanation:

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Filed Under: Indian Economy
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