Question

In a battle 70% of the combatants lost eye, 80% an ear, 75% an arm, 85% a leg, x% lost all of four body parts. The minimum value of x is

• A. 10
• B. 12
• C. 15
• D. 11

Answer 1

The correct option is A

10

Number of combatants that lost all of four body parts = 100 - (Sum of combatants who did not loose an eye or an ear or an arm or a leg)
Percent of combatants who did not loose an eye = 30
Percent of combatants who did not loose an ear = 20
Percent of combatants who did not loose an arm = 25
Percent of combatants who did not loose a leg = 15

Minimum value of x = 100 - (30 + 20 + 25 +15) = 100 - 90 = 10