Find the number of negative integral solutions of | x+1x | +|x + 1|=(x+1)2|x|

1. 0

2. 2

3. 3

4. 4

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Dravid and Sachin each had a certain number of playing marbles. Dravidlost a game to Sachin and had to give Sachin half of his marbles. In the secondgame, Sachin lost and had to give three-fourths of his marbles to Dravid,who now had thirty marbles. Finally, the two played a third game. Sachinwon and acquired some of Dravids marbles.At this point, each boy had exactlythe number of marbles he had started with, and Dravid had twice asmany marbles as Sachin. How many marbles did Sachin has in the beginning?

1. 12

2. 24

3. 36

4. None of the this

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Amrita hosted a birthday party and invited all her friends and asked themto invite their friends.There are n people in the party.Only Satyam is notknown to Amrita.Each pair that does not include Amrita or Satyam has exactly2 common friends.Also,Satyam knows everyone except Amrita.If only2 friends can dance at a time,how many dance numbers will be there at theparty

1. 3n − 7

2. 2n + 5

3. 4n − 3

4. none of these

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Correct Answer :

3n − 7

Explanation :
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Let S be the set of five-digit numbers formed by the digits 1, 2, 3, 4 and 5,using each digit exactly once such that exactly two odd positions are occupiedby odd digits. What is the sum of the digits in the rightmost positionof the numbers in S

1. 228

2. 216

3. 294

4. 192

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Correct Answer :

216

Explanation :
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There are 100 windows in a room.Initially all the windows are open.Thefirst person enters and closes all the windows. The second person comes andhe changes the states of window(i.e he opens the window if it is closed andcloses the window if it is open) for the even numbered windows. Similarlythe third person comes and he changes the states of the window which aremultiples of 3. Similarly 4th , 5th ....100th person comes and changes thestate of the window. How many window will remain open

1. 10

2. 90

3. 100

4. None of the these

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If a2b3c = 256/27 find min value of a + b + c, given a, b, c are positivereal nos

1. 10

2. 11

3. 12

4. 13

5. 14

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From four positive real nos a, b, c and d, 4 distinct combination of sumof three numbers are formed S1, S2, S3 and S4. IF abcd = 5. FInd the minvalue of S1S2S3S4

1. 40

2. 135

3. 1080

4. 405

5. 1280

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Correct Answer :

405

Explanation :
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Let the cost of 3 apples and 4 oranges be Rs 21. If Anjli can buy atmost 4 apples and 3 oranges with Rs 20 and no more fruit, then the maximumamount that could be left with Anjli will be about

1. Rs 1

2. Rs 1.25

3. Rs 1.50

4. Rs 2

5. Rs 2.25

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A number when divided by a divisor leaves a remainder of 24. When twice the original number is divided by the same divisor, the remainder is 11. What is the value of the divisor

1. 13

2. 59

3. 35

4. 37

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The product of 4 consecutive even numbers is always divisible by:

1. 600

2. 768

3. 864

4. 384

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Correct Answer :

384

Explanation :
No Explanation available for this question

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