Cost of War
A group of 100 soldiers suffered the following injuries in a battle:
70 soldiers lost an eye,
75 lost an ear,
85 lost a leg,
and 80 lost an arm.
What is the minimum number of soldiers who must have lost all 4?
Click below for finding answer for above brainteaser:
You might think answer is 70 but that is maximum number not minimum. Minimum number is 10.
Here goes the answer:
- 70 soldiers lost an eye… so 30 DID NOT lose an eye
- 75 lost an ear. 25 DID NOT lose an ear
- 85 lost a leg. 15 DID NOT
- 80 lost an arm. 20 DID NOT
So, to lose all 4, you can’t “DID NOT” any of those…
Thus, 30+25+15+20 = 90… that means 90 people out of a 100 AT LEAST lost 1 body part.
This leaves 10 out of 100 to have lost ALL FOUR.
If you don’t agree with the logic…use comment section for your answer!