Infosys Puzzle Solving Previous Year Questions

28 January 2023

Infosys Puzzle Solving Questions

Q1) Given is the set of nine numbers that relate to each other in a certain way.

Determine the missing number.

A. 4

B. 7

C. 3

D. 90

Answer : Option A

Explanation:

1* 5 = 5

2*5 = 10

3*5 = 15

Hence 4* 5 = 20

Therefore, ? = 4

Q2) Find the missing terms in the third figure. Assume the third figure works in the same way as the other two.

A. A=9,B=17

B. A=14,B=22

C. A=14,B=28

D. A=18,B=9

Answer : Option C

Explanation:

14 +8 = 22

22/2 = 11

Similarly

12+8 = 20

20/2 = 10

Hence,

20 + 8 = 28 (B)

28/2 = 14 (A)

A = 14 and B = 28

Q3) Find the missing term in the third figure. Assume the third figure works in the same way as the other two.

A. 50

B. 110

C. 61

D. 26

Answer : Option D

Explanation:

Figure 1 -- 2, 4 & 20

which is 2×2+4×4=20

Figure 2 -- 3,9 & 90

which is 3×3+9×9=90

therefore, 1,5=1×1+5×5=26

Q4) Which number should replace the question mark in the series: 14, 17, 22, 29, ?

A. 40

B. 39

C. 41

D. 43

Answer : Option A

Explanation:

14 +3 = 17

17 + 5 =22

22+7 = 29

Therefore, the next number will be 29+11 = 40

Q5) If sum of digits of a number 3Q6 is 9 then Q is ____.

A. Three

B. Two

C. One

D. Zero

Answer : Option D

Explanation:

If sum of digits of a number 3Q6 is 9 then Q is 0

3 + Q + 6 = 9

Q = 0

Q6) If X + X + X =33; X + Y + Y = 31 then X + Y = ?

A. 21

B. 18

C. 16

D. 12

Answer : Option A

Explanation:

If X + X + X =33

3X=33

X = 11

Sub X=11

X + Y + Y = 31

2Y +11 = 31

2Y = 20

Y = 10

then X + Y = 11+10 = 21

Q7) The missing number in the sequence : 25, 36, 49, ?, 81 is ___.

A. 64

B. 60

C. 72

D. 68

Answer : Option A

Explanation:

The missing number in the sequence 25, 36, 49,?, 81 is 64

25 = 5²

36 = 6²

49 = 7²

64 = 8²

81 = 9²

Infosys Puzzle Solving Previous Year Questions

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Infosys Puzzle Solving Previous Year Questions

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