Math Puzzle 6 [With Answer]

Puzzle 1: What replaces the question mark?

Answer: 3

Explanation: Adding two boxes diagonally

4 +2 = 6

2 + 1 = 3

1 + 6 = 7

6 + ? = 9 ⇒ 9 - 6 = 3

So, 6 + 3 = 9

3 + 7 = 10

10 + 9 = 19

[Or]

19 - 10 = 9

10 - 7 = 3

7 - 6 = 1

9 - 3 = 6

6 - 2 = 4

Puzzle 2: What replaces the question mark?

Answer: 99

Explanation:

3 x 2 = 6 + 1 = 7

5 x 4 = 20 + 3 = 23

7 x 6 = 42 + 5 = 47

9 x 8 = 72 + 7 = 79

10 x 9 = 90 + 9 = 99

Puzzle 3: What replaces the question mark?

Answer: 8

Explanation: Adding horizontally or vertically we get 15

⇒ 1 + 5 + 6 + 3 = 15 (or) 1 + 4+ 9 + 1 = 15

⇒ 4 + ? + 1 + 2 = 15 (or) 5 + ? + 1 + 1 = 15

⇒ 15 - 7 = 8

⇒ 9 + 1 + 2 + 3 = 15 (or) 6 + 1 + 2 + 6 = 15

⇒ 1 + 1 + 6 + 7 = 15 (or) 3 + 2 + 3 + 7 = 15

Puzzle 4: What replaces the question mark?

Answer: 4

Explanation:

6 x3 = 18

7 x 9 = 63

6 x 4 = 24

7 x 6 = 42

Puzzle 5: How many triangles are there?

Answer: 13