Number Series Questions for Syndicate Bank PO, Canara Bank PO and LIC AAO Set-1

Direction (Q.1-5): What will come in place of the question mark (?) in the following number series?

 

Q.1 236.25, 52.5, 15, 6, ?, 8

(A) 6

(B) 8

(C) 4

(D) 5

(E) None of these

 

Q.2 390, 381, 356, 307, ?, 17

(A) 186

(B) 156

(C) 176

(D) 196

(E) 166

 

Q.3 6, 4, 5, 11, 39, ?

(A) 185

(B) 162

(C) 179

(D) 183

(E) None of these

 

Q.4 3.2, ?, 19.2, 96, 672, 7392

(A) 7.2

(B) 5.6

(C) 8.1

(D) 6.4

(E) 6

 

Q.5 21, 45, 76, 114, ?, 211

(A) 162

(B) 188

(C) 159

(D) 173

(E) None of these

 

Answer 1. (C) 4

Explantaion:

Pattern Series
236.25 236.25
236.25 ÷ 4.5 52.5
52.5 ÷ 3.5 15
15 ÷ 2.5 6
6 ÷ 1.5 4 (✓)
4 ÷ 0.5 8

Answer 2. (A) 186

Explantaion:

Pattern Series
390 390
390 – 32 381
381 – 52 356
356 – 72 307
307 – 112 186 (✓)
186 – 132 17

Answer 3. (E) None of these

Explantaion:

Pattern Series
6 6
6 × 1 – 2 4
4 × 2 – 3 5
5 × 3 – 4 11
11 × 4 – 5 39
39 × 5 – 6 189 (✓)

Answer 4. (D) 6.4

Explantaion:

Pattern Series
3.2 3.2
3.2 × 2 6.4 (✓)
6.4 × 3 19.2
19.2 × 5 96
96 × 7 672
672 × 11 7392

Answer 5. (C) 159

Explantaion:

Series : 21 45 76 114 159 211
Pattern : 24 31 38 45 52
+7 +7 +7 +7

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