Question

In a survey of 200 members of a College it was found that 120 had laptop, 90 had calculator and 70 had mobile phone, 40 had laptop and calculator, 30 had calculator and mobile phone, 50 had mobile phone and laptop and 20 had none of these gadgets

On the basis of above information answer the following questions.

Q1. Find the number of members of calculator and mobile phone but not laptop.

Q2: Find the number of members of laptop and mobile phone but not calculator.

Q3: How many members have no laptop?

Answer 1

the number of members of calculator and mobile phone are 160

Answer 2

hope this answer is helpful to you