Tech Mahindra Papers: Sample Questions 30  32 of 42
Examrace Placement Series prepares you for the toughest placement exams to top companies.
Question number: 30
» Aptitude
Short Answer Question▾
Write in Short
What is the missing term in the series?
169,225, —–, 361,441
Explanation
 Here, all the terms are square numbers and its square root is alternate numbers starting from 13.
 First term of the given series is 169, which is square of 13.
 Second term of the series is 225, which is square of 15. Difference between 13 and 15 is 2.
 Third term of the series need to be find out.
 Fourth term of the series is 361, which is square of 19. Difference between 15 and 19 is 4.
 Fifth term of the series is 441, which is square of 21. Difference between 19 and 21 is 2.
 For the third term difference between second and third term should be 2.
 So, it should be 17. Square of 17 is 289.
 So, third term should be 289.
Question number: 31
» Aptitude
MCQ▾
Question
What is the smallest number by which 2880 must be divided in order to make it perfect square?
Choices
Choice (4)  Response  

a.  8 

b.  5 

c.  6 

d.  4 

Answer
b.Explanation
Factorising the given number, 2880
2880 =
If we will divide 2880 by 5 then remaining number will be a perfect square number, 4 and 9 both are perfect square of 2 and 3.
Question number: 32
» Aptitude
MCQ▾
Question
Complete the following series.
a, e, i, m, q, u, _, _
Choices
Choice (4)  Response  

a.  b, f 

b.  g, i 

c.  y, c 

d.  Question does not provide sufficient data or is vague 

Answer
c.Explanation
 Here, first term of the series is ‘a’.
 Second term of the series is ‘e’, which is four position ahead of ‘a’ in alphabetical order.
 Third term of the series is ‘i’, which is four position ahead of ‘e’ in alphabetical order.
 Fourth term of the series is ‘m’, which is four position ahead of ‘i’ in alphabetical order.
 Fifth term of the series is ‘q’, which is four position ahead of ‘m’ in alphabetical order.
 Sixth term of the series is ‘u’, which is four position ahead of ‘q’ in alphabetical order.
 So, next seventh term should also be four position ahead of its previous letter.
 Seventh term will be ‘y’ which is four position ahead of ‘u’ in alphabetical order.
 Next eighth term will be ‘c’ which is also four position ahead of ‘y’ in alphabetical order.