Question : Directions: Study the given pattern carefully and select the number that can replace the question mark (?) in it.
(15, 1, 7, 32) (20, 2, 7, 47) (13, 3, 7, 50) (7, 4, ?, 48)
Option 1: 1
Option 2: 8
Option 3: 5
Option 4: 3
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Correct Answer: 1
Solution :
Given:
(15, 1, 7, 32) (20, 2, 7, 47) (13, 3, 7, 50) (7, 4, ?, 48)
The fourth number is the sum of the first number and the second and third digits combined.
(15, 1, 7, 32)→15 + 17 = 32
(20, 2, 7, 47)→20 + 27 = 47
(13, 3, 7, 50)→13 + 37 = 50
Similarly, (7, 4, ?, 48)→
⇒ 7 + (?) = 48
⇒ 48 – 7 = 41 (4 is the second number and 1 is the third number of the given set.)
So, the missing number is 1. Hence, the first option is correct.
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