Solved Number Based Puzzle Problems For Wipro Placement Tests
Question 1
If 85 + 17 = 51, 76 + 19 = 42, 91 + 13 = 73 then 120 + 15 = ?
a) 68 b) 84 c) 96 d) none of these
Answer : b) 84.
Solution :
The ten's place of answers in the given question are obtained as follows:
85 + 17 = 85 / 17 = 5,
76 + 19 = 76 / 19 = 4,
91 + 13 = 91 / 13 = 7,
So, 120 + 15 = 120 / 15 = 8
Observing the given question, the unit digit of the answers are 1, 2 and 3 respectively.
So, the unit digit of required answer is 4.
Hence, the required answer is 84.
85 + 17 = 85 / 17 = 5,
76 + 19 = 76 / 19 = 4,
91 + 13 = 91 / 13 = 7,
So, 120 + 15 = 120 / 15 = 8
Observing the given question, the unit digit of the answers are 1, 2 and 3 respectively.
So, the unit digit of required answer is 4.
Hence, the required answer is 84.
Question 2
If 9 + 7 + 8 = 2, 8 + 5 + 7 = 6, 7 + 4 + 6 = 2 then 5 + 2 + 5 = ?
a) 4 b) 6 c) 5 d) 7
Answer : c) 5.
Solution :
The general pattern of the given question is a + b + c = d where, a x c = bd. That is,
9 x 8 = 72 which gives 2 as the answer.
8 x 7 = 56 which gives 6 as the answer.
7 x 6 = 42 which gives 2 as the answer.
Then, 5 x 5 = 25 which gives 5 as the answer.
9 x 8 = 72 which gives 2 as the answer.
8 x 7 = 56 which gives 6 as the answer.
7 x 6 = 42 which gives 2 as the answer.
Then, 5 x 5 = 25 which gives 5 as the answer.
Question 3
If 51 + 23 = 37, 62 + 34 = 32 and 59 + 49 = 27 then 84 + 56 = ?
a) 28 b) 38 c) 39 d) 29.
Answer : a) 28
Solution :
General form is add the given two numbers and divide the results by 2, 3, 4 and 5 respectively, to get the answer.
That is,
51 + 23 = 74 = 74 / 2 = 37
62 + 34 = 96 = 96 / 3 = 32
59 + 49 = 108 = 108 / 4 = 27
And, 84 + 56 = 140 = 140 / 5 = 28.
Hence, the required answer is 28.
62 + 34 = 96 = 96 / 3 = 32
59 + 49 = 108 = 108 / 4 = 27
And, 84 + 56 = 140 = 140 / 5 = 28.
Hence, the required answer is 28.