# Tata Infotech Papers: Sample Questions 15 - 17 of 41

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## Question number: 15

### Write in Short

Complete the following series.

10,15,12,17,14,19, ________

### Explanation

• Dividing the given series into two parts of odd and even terms,
• Odd term series: 10,12,14, …
• Even term series: 15,17,19, …
• Next term will follow the same sequence followed by odd term series.
• Here, each term is incremented by four numbers, i. e. Difference between two consecutive terms is + 2.
• So, next term will be

## Question number: 16

### Write in Short

Complete the following series.

3,18,4, 24,5, 30, ________

### Explanation

• Divide the given series into two parts of odd and even terms.
• Odd term series: 3,4, 5, …
• Even term series: 18,24,30, …
• Next term will follow the same pattern of odd term series.
• Here, each term is incremented by one digit number, i. e. difference between two consecutive numbers is + 1.
• So, next term will be

## Question number: 17

### Write in Short

Complete the following series.

25,25,22,22,19,19, ________

### Explanation

• In the given series first two terms are 25 and 25.
• Third and fourth terms of the series are 22 and 22. Difference between 25 and 22 is -3.
• Fifth and sixth terms of the series are 19 and 19. Difference between 22 and 19 is -3.
• Same way, difference between sixth and seventh term should be -3.
• So, seventh term will be
• Next term of the series is 16.