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Store Survey (Posted on 2012-10-16)

A survey was carried out among 100 ladies leaving a departmental store and, it was observed that 77 had black shoes, 83 had a white bag, 62 carried an umbrella and 95 wore a ring.

What is the minimum number of ladies who must have had all the four items?

Submitted by K Sengupta

Rating: 5.0000 (1 votes)

Solution: (Hide)

The minimum number of ladies having all the 4 items is 17.
For an explanation, refer to the solution submitted by Jer in this location.

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
Another way to think about it (spoiler)	Jer	2012-10-17 12:33:53
spoiler	Ady TZIDON	2012-10-16 10:43:35

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