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In a survey of 300 android mobile users, who make video calls, 75 people said they use only viber, 45 use only skype and 90 people use both. The number of people who use neither viber nor skype is |
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Answer» In a survey of 300 android mobile users, who make video calls, 75 people said they use only viber, 45 use only skype and 90 people use both. The number of people who use neither viber nor skype is |
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