Number Series Pdf Model Questions & Answers, Practice Test for ibps po prelims 2024 2025

Question :1

What should come in place of the question mark(?) in the following number series?

24 ? 109 134 150 159

Answer: (e)

Here,

$24 + 7^2$ = 73

73 + $6^2$ = 109

109 + $5^2$ = 134

134 + $4^2$ = 150

150 + $3^2$3 = 159

Hence, the question mark(?) should be replaced by 73.

Question :2

What should come in place of the question mark (?) in the following number series.

102 104 99 97 106 ?

Answer: (a)

The series is as follows

number series for all competitive exams 10 23a

Question :3

What should come in place of the question mark (?) in the following number series?

462 552 650 756 870 992 ?

Answer: (a)

462 + 90 = 552

552 + 98 = 650

650 + 106 = 756

756 + 114 = 870

870 + 122 = 992

992 + 130 = 1122

Question :4

In the following number series, a wrong number is given. Find out that wrong number.

16 4 2 1.5 1.75 1.875

Answer: (a)

The series is based on the following pattern:

16 × 0.25 = 4

4 × 0.50 = 2

2 × 0.75 = 1.5

1.5 × 1.00 = 1.5 ; not 1.75

1.5 × 1.25 = 1.875

Clearly, 1.75 should be replaced by 1.5.

Question :5

In each of the following number series one of the given numbers is wrong. Find out the wrong number.

5040 3014 1814.4 1088.64 653.184 391.9104

Answer: (e)

Here,

5040 × 3 ÷ 5 = 3014

3014 × 3 ÷ 5 = 1814.4

1814.4 × 3 ÷ 5 = 1088.64

1088.64 × 3 ÷ 5 = 653.184

653.184 × 3 ÷ 5 = 391.9104 Hence there is no wrong number in the series given.

ibps po prelims 2024 2025 IMPORTANT QUESTION AND ANSWERS
Number Series ibps po prelims 2024 2025 question answer with explanation PDF

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