**Math Riddle: **Out of 100 ladies attending the gala,

85 had a white handbag;

75 had black shoes;

60 carried an umbrella;

90 wore a ring;

How many ladies must have had all four items?

**Answer: **The correct answer is 10

Divide by 3. All the ladies had three items. The remainder shows the number of ladies who had 4.

85

75

60

90

______

310 / 3 = 100 + 10 remainder