# Tata Infotech Placement: Sample Questions 35 - 37 of 41

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## Question 35

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Short Answer▾

Complete the following series.

2, 6, 18, 54,162, 486, ________

### Explanation

• Here, first term of the series is 2.
• Second term of the series is 6, i.e..
• Third term of the series is 18, i.e..
• Fourth term of the series is 54, i.e..
• Fifth term of the series is 162, i.e..
• Sixth term of the series is 486, i.e..
• Next term will also be thrice of its previous term.
• So, next term will be,

## Question 36

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Short Answer▾

If 12 file cabinets require 18 feet of wall space, how many feet of wall space will 30 cabinets require?

### Explanation

• 12 file cabinets require 18 feet of wall space.
• We are asked to find the wall space for 30 cabinets.
• Required wall space will be, =

=

• So, 30 cabinets will require 45 feet of wall space.

## Question 37

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Short Answer▾

Complete the following series.

7, 16, 9, 15,11, 14, ________

### Explanation

• Dividing the given series into two parts of odd and even terms,
• Odd terms series: 7,9, 11, …
• Even terms series: 16,15, 14, …
• Next term will follow the pattern of odd term series.
• Here, each term is incremented by two numbers, i.e.. difference between two consecutive terms is + 2.
• So, next term is

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