Find the total number of ways in which a black square and a white square can be selected from a chessboard such that both the squares lie either in the same row or in the same column.

1.  256

2.  512

3.  128

4.  64

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4
Correct Answer :

256


Explanation :
No Explanation available for this question

In the above triangle ABC, find the co-ordinates of the foot of the perpendicular drawn from B to AC.

1.  

2.  

3.  

4.  

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4
Correct Answer :


Explanation :
No Explanation available for this question

Ours is a big family. I have thrice as many brothers as sisters and my sister Bharathi has four times as many brothers as sisters. How many children do my parents have

1.  15

2.  16

3.  21

4.  20

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4
Correct Answer :

21


Explanation :
No Explanation available for this question

A and B have written an entrance exam and scored 55 marks and 85 marks respectively. Every question answered correctly fetches one mark but the negative marks per wrong answer for the first twenty wrong answers is different from that for the remaining wrong answers. A and B attempted 160 and 150 questions respectively. If A and B correctly answered 50% and of the questions that they attempted respectively, find the negative mark for each wrong answer beyond the first twenty wrong answers.

1.  1/2

2.  1/3

3.  1/4

4.  2/3

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4
Correct Answer :

1/3


Explanation :
No Explanation available for this question

A certain sum is invested at simple interest. If the sum becomes k times itself in 16 years and 2k times itself in 40 years, in how many years will it become 4k times itself

1.  96 years

2.  88 years

3.  80 years

4.  64 years

View Answer  
4
Correct Answer :

88 years


Explanation :
No Explanation available for this question

Two numbers are in the ratio 2 : 3. If their L.C.M. is 48. what is sum of the numbers

1.  28

2.  40

3.  64

4.  42

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4
Correct Answer :

40


Explanation :
No Explanation available for this question

What is the greatest number of four digits which is divisible by 15, 25, 40 and 75

1.  9800

2.  9600

3.  9400

4.  9200

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4
Correct Answer :

9600


Explanation :
No Explanation available for this question

Three numbers are in the ratio of 2 : 3 : 4 and their L.C.M. is 240. Their H.C.F. is:

1.  40

2.  30

3.  20

4.  10

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4
Correct Answer :

30


Explanation :
No Explanation available for this question

What is the lowest common multiple of 12, 36 and 20

1.  160

2.  220

3.  120

4.  180

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4
Correct Answer :

180


Explanation :
No Explanation available for this question

What is the least number which when divided by 5, 6, 7 and 8 leaves a remainder 3, but when divided by 9 leaves no remainder

1.  1108

2.  1683

3.  2007

4.  3363

View Answer  
4
Correct Answer :

1683


Explanation :
No Explanation available for this question
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