Study the given pattern carefully and select the number that can replace the question mark (?) in it.
First row- 8, 28, 53
Second row- 7, 25, 47
Third row- 13, 43, ?
(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 - Operations on 13 such as adding /subtracting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is NOT allowed)
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 83.
- Logic: (First number × 3 + 1) + Second number = Third number
- (8 × 3 + 1) + 28 = 53
- (7 × 3 + 1) + 25 = 47
- (13 × 3 + 1) + 43 = 83.