Math Puzzle 7 [With Answers]

Puzzle 1: What number replaces the question mark?

Answer: 6

Explanation:

5 x 6 + 2 = 32

7 x 6 + 2 = 44

Puzzle 2: what does the below mathematical rebus means?

Answer: For a change

Puzzle 3: What number replaces the question mark?

Answer: (a x b) (a x c) (a x b + a x c - b)

5 + 3 + 2 = (15) (10) (15 + 10 - 3) = 151022

9 + 2 + 4 = (18) (36) (18 + 36 - 2) = 183652

8 + 6 + 3 = (48) (24) (48 + 24 - 6) = 482466

5 + 4 + 5 = (20) (25) (20 + 25 - 4) = 202541

7 + 2 + 5 = (14) (35) (14 + 35 - 2) = 143547

Puzzle 4: What number replaces the question mark?

5, 7, 11, 13, 17, ?

Answer: 19

All are prime numbers.

Puzzle 5: What number replaces the question mark?

IF 1 + 1 = 5

2 + 2 = 20

3 + 3 = 45

Then, 4 + 4 =?

Answer: 80

Explanation: Multiply the two numbers and then multiply the result by 5.

1 x 1 x 5 = 5

2 x 2 x 5 = 20

3 x 3 x 5 = 45

4 x 4 x 5 = 80