Missing Number Series for SBI PO Prelims Exam – Attempt Now

Missing Number Series for SBI PO Prelims Exam
Missing Number Series for SBI PO Prelims Exam

Missing Number Series for SBI PO

Missing Number Series for SBI PO: Questions on number series are prevalent in most of the management aptitude exams. These questions are based on numerical sequences that follow a logical rule/ pattern based on elementary arithmetic concepts.

A particular series is given by which the pattern must be analyzed. You are then asked to predict the next number in the sequence following the same rule. Generally, there are three types of questions asked from the number series:
A numerical series is given in which a number is wrongly placed. You are asked to identify that particular wrong number.
A numerical series is given in which a specific number is missing. You are required to find out that missing number.
A complete numerical series is followed by an incomplete numerical series. You need to solve that incomplete numerical series in the same pattern in which the complete numerical series is given.

How to solve Number series problems easily By Tricks

13.2.15
Generally, two kinds of series are asked in the examination. One is based on numbers and the other based on the alphabet.

Step 1: Observer is there any familiar numbers in the given series. Familiar numbers are primes numbers, perfect squares, cubes … which are easy to identify.

Step 2: Calculate the differences between the numbers. Observe the pattern in the differences. If the differences are growing rapidly it might be a square series, cube series, or multiplicative series. If the numbers are growing slowly it is an addition or subtraction series.

  1. It might be a double or triple series. Here every alternate number or every 3rd number form a series
  2. It might be a sum or average series. Here the sum of two consecutive numbers gives the 3rd number. or an average of the first two numbers give the next number

Step 3: Sometimes the number will be multiplied and will be added another number So we need to check those patterns

 

Missing number series     

Directions (01 – 05): What value should come in the place of (?) in the following number series?

Missing number series     

Directions (01 – 05): What value should come in the place of (?) in the following number series?

1) 12, 40, 106, ?, 340, 352

a) 240

b) 200

c) 210

d) 220

e) 250

2) 1, 5, 32, 48, 173, ?

a) 222

b) 516

c) 209

d) 389

e) 427

3) 340, 510, ?, 1147.5, 1721.25, 2581.875

a) 765

b) 775

c) 785

d) 795

e) 755

4) 19, 30, 63, 118, 195, ?

a) 286

b) 290

c) 294

d) 298

e) 308

5) 20, 74, 112, 136, 148, ?

a) 150

b) 156

c) 162

d) 168

e) 164

 

Answers :

Directions (1-5) :

1) Answer: d)

12 * 3 + 4 = 40

40 * 2.5 + 6 = 106

106 * 2 + 8 = 220

220 * 1.5 + 10 = 340

340 * 1 + 12 = 352

2) Answer: c)

1 + 22 = 5

5 + 33 = 32

32 + 42 = 48

48 + 53 = 173

173 + 62 = 209

3) Answer: a)

340 * 1.5 = 510

510 * 1.5 = 765

765 * 1.5 = 1147.5

1147.5 * 1.5 = 1721.25

1721.25 * 1.5 = 2581.875

4) Answer: c)

19 + (1* 11) = 30

30 + (3 * 11) = 63

63 + (5 * 11) = 118

118 + (7 * 11) = 195

195 + (9 * 11) = 294

5) Answer: a)

20 + (82 – 10) = 74

74 + (72 – 11) = 112

112 + (62 – 12) = 136

136 + (52 – 13) = 148

148 + (42 – 14) = 150





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