Picture Riddle: Find the Missing Number From the Given Information

To solve the riddle we first substitute the pictures with letters;

Let’s assume the following;

Burger = B

Pizza slice = P

Cola drink glass = C

We can rewrite the equations as;

B + B + B = 30 ————- (1)

B + P + P = 20 ————- (2)

P + 2C + 2C = 9 ————- (3)

&

P + C x B = ? ————- (4)

From (1)

3B = 30

Therefore;

B = 10

From (2)

B + 2P = 20

10 + 2P = 20

2P = 10

Therefore;

P = 5

From (3)

P + 2C + 2C = 9

5 + 4C = 9

4C = 4

Therefore;

C = 1

To find the missing number in (4)

P + C x B = ?

Substituting the values of B, P & C in  (4) we get;

5 + 1 x 10 = 5 + 10 = 15

Answer = 15