There are five comics numbered from 1 to 5. In how many ways can they be arranged, so that part-1 and part-3 are never together

1. 48

2. 72

3. 120

4. 210

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Correct Answer :

Explanation :
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How many factors of 24×53×74 are odd numbers

1. 20

2. 24

3. 30

4. 36

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Correct Answer :

Explanation :
No Explanation available for this question

A traveler, on his way to a certain village A, reaches a road junction, where he can turn left or right. He knows that only one of the two roads leads to village A, but unfortunately, he does not know which one. Fortunately, he sees two twin-brothers standing at the road junction, and he decides to ask them for directions. The traveler knows that one of the two brothers always tells the truth and the other one always lies. Unfortunately, he does not know which one always tells the truth and which one always lies. With which of the following questions can the traveler find out the way to village A by asking just this one question to one of the two brothers

1. "Does the left road lead to village A according to your brother"

2. "Which road leads to village A according to your brother?"

3. "If I were to take the left road then what according to your brother will be the answer to the question “Am I on the right road ?”

4. None of the above

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Correct Answer :

"Does the left road lead to village A according to your brother"

Explanation :
No Explanation available for this question

On Madagascar Island, there are x dodos in a particular year. 30 dodos in a thousand of the original population die every year and 25 dodos in a thousand of the original population are born every year. In how many years will the population of dodos halve itself

1. 200

2. 125

3. 100

4. Indeterminate

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Correct Answer :

100

Explanation :
No Explanation available for this question

If x is a number satisfying 2 < x < 3 and y is such that 7 < y < 8, which of the following expressions will have the largest value

1. x2y

2. xy2

3. 2xy

4. 2x/y

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Correct Answer :

xy²

Explanation :
No Explanation available for this question

If x, y, z are chosen from the 3 numbers –3, 1/2 , 2 without repetition. What is the largest possiblevalue of (x3z2)/y

1. 214

2. 144

3. 432

4. 168

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Correct Answer :

144

Explanation :
No Explanation available for this question

The diff b/w l.c.m and h.c.f of 2 natural nos. a and b is 57.what is d min value of a+b

1. 22

2. 27

3. 31

4. 58

5. None of the above

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Correct Answer :

Explanation :
No Explanation available for this question

Let x, y be positive real nos such that x3 + y3 = 4x2 find maximum value of x + y

1. 4

2. 5

3. 16/3

4. 16/5

5. none of these

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Correct Answer :

16/3

Explanation :
No Explanation available for this question

x, y and z are positive integers. Then how many triplets (x, y, z) exist (x + y + z)2 + (x + y − z)2 + (x − y + z)2 = 40

1. 1

2. 3

3. 5

4. 6

5. 2

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Correct Answer :

Explanation :
No Explanation available for this question

8 gallons of milk are taken out of a cask filled with milk and replaced by water. Later 6 gallons of the mixture are taken out of the cask and replaced with water, with the result that the cask now contains equal proportions of milk and water. What is capacity of the cask

1. 28 gallons

2. 16 gallons

3. 24 gallons

4. 36 gallons

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Correct Answer :

24 gallons

Explanation :
No Explanation available for this question

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