Asked by Kal Jay

In a survey of 380 households regarding the ownership of VCRs and DVD players, the following data was obtained:

350 households own one or more VCRs.
​180 households own one or more VCRs and one or more DVD players.
​13 households do not own a VCR or a DVD player.

How many households only own one or more DVD players?

20 households
29 households
19 households
16 households
17 households
30 households

Please explain. thank you

Answers

Answered by bobpursley
Total=VCR+DVD Only +13
380 =350 +DVD only-13
DVDonly=30-13=17

A venn diagram helps.

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