Question

Find out the missing number

?	13	49
9	17	69
13	11	59

 

Options

• 5

• 9

• 10

• 21

Answer 1

5
Explanation:
As, 13 x 2 + 11 x 3 = 26 + 33 = 59
9 x 2 + 17 x 3 = 18 + 51 = 69
Similarly,
? x 2 + 13 x 3 = 49
⇒ ? x 2 = 49 - 39

⇒ ? = `10/2=5`