Total=VCR+DVD Only +13
380 =350 +DVD only-13
DVDonly=30-13=17
A venn diagram helps.
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
1 answer
1 answer