Euclid has a triangle in mind. Its longest side has length 20 and another of its sides has length 10. Its area is 80. What is the exact length of its third side

1.  √260

2.  √250

3.  √240

4.  √270

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4
Correct Answer :

√260


Explanation :
No Explanation available for this question

Three runners A, B and C run a race, with runner A finishing 12 meters ahead of runner B and 18 meters ahead of runner C, while runner B finishes 8 meters ahead of runner C. Each runner travels the entire distance at a constant speed. What was the length of the race

1.  36 meters

2.  48 meters

3.  60 meters

4.  72 meters

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4
Correct Answer :

48 meters


Explanation :
No Explanation available for this question

In triangle DEF shown below, points A, B, and C are taken on DE, DF and EF respectively such that EC = AC and CF = BC. If angle D = 40 degrees, then what is angle ACB in degrees

1.  140

2.  70

3.  100

4.  None of these

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4
Correct Answer :

100


Explanation :
No Explanation available for this question

A can complete a piece of work in 4 days. B takes double the time taken by A, C takes double that of B, and D takes double that of C to complete the same task. They are paired in groups of two each. One pair takes two-thirds the time needed by the second pair to complete the work. Which is the first pair

1.  A, B

2.  A, C

3.  B, C

4.  A, D

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4
Correct Answer :

A, D


Explanation :
No Explanation available for this question

A square, whose side is 2 meters, has its corners cut away so as to form an octagon with all sides equal. Then the length of each side of the octagon, in meters is:

1.  √2/(√2+1)

2.  2/(√2+1)

3.  2/(√2-1)

4.  √2/(√2-1)

View Answer  
4
Correct Answer :

2/(√2+1)


Explanation :
No Explanation available for this question

A student took five papers in an examination, where the full marks were the same for each paper. His marks in these papers were in the proportion of 6 : 7 : 8 : 9 : 10. In all papers together, the candidate obtained 60% of the total marks. Then the number of papers in which he got more than 50% marks is:

1.  2

2.  3

3.  4

4.  5

View Answer  
4
Correct Answer :

4


Explanation :
No Explanation available for this question

Let n be the number of different 5 digits numbers, divisible by 4 that can be formed with the digits 1, 2, 3, 4, 5 and 6, with no digit being repeated. What is the value of n

1.  144

2.  168

3.  192

4.  None of these

View Answer  
4
Correct Answer :

192


Explanation :
No Explanation available for this question

For a Fibonacci sequence, from the third term onwards, each term in the sequence is the sum of the previous two terms in that sequence. The difference in squares of seventh and sixth terms of this sequence is 517. What is the tenth term of this sequence

1.  147

2.  76

3.  123

4.  Cannot be determined

View Answer  
4
Correct Answer :

123


Explanation :
No Explanation available for this question

In some code, letters a, b, c, d and e represents numbers 2, 4, 5, 6 and 10. We just don't know which letter represents which number. Consider the following relationships: i)   a + c = e, ii)  b - d = d and iii) e + a = b Which statement below is true

1.  b = 4, d = 2

2.  a = 4, e = 6

3.  b = 6, e = 2

4.  a = 4, c = 6

View Answer  
4
Correct Answer :

a = 4, e = 6


Explanation :
No Explanation available for this question

In a number system, the product of 44 and 11 is 1034. The number 3111 of this system, when converted to the decimal number system, becomes

1.  406

2.  1086

3.  213

4.  691

View Answer  
4
Correct Answer :

406


Explanation :
No Explanation available for this question
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