In a recent survey it was found that 55% of customers want to use iphone, 35% want to use samsung, 15% want to use oppo only, 25% want to use iphone and oppo, 20% want to use oppo and samsung, 15% want iphone and samsung and 10% want all three. If 65 people do not want to use any mobile, find the total number of customers involved in survey by using venn-diagram.
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Answer:
175 percent
Step-by-step explanation:
step by step -55+35+25+20+15+10=175
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