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Following data refers to total 2000 people who visited a mall on Saturday for the following activities: Movies, Dine- out and Shopping. A person may engage in one or more than one activity. `60%` of the total number of people dined out and `54%` of the total number of people went for Shopping (out of which 500 went for only Shopping).-The number of people who went for only Movies was half of that who went for both Movies and Dine-out -(but not shopping), and those who went for all activities are equal to those who went for both Shopping and Dine-out (but not Movies). 100 people went for both Shopping and Movies} (but not Dine-out).
What is the number of people who went for only Dine-

A

350

B

360

C

320

D

400

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem step by step, we will analyze the information provided and use it to find the number of people who went for only Dine-out. ### Step 1: Calculate the total number of people who dined out and went shopping. - Total number of people = 2000 - Percentage of people who dined out = 60% - Number of people who dined out = 60% of 2000 = 0.6 * 2000 = 1200 - Percentage of people who went shopping = 54% - Number of people who went shopping = 54% of 2000 = 0.54 * 2000 = 1080 ### Step 2: Determine the number of people who went for only shopping. - It is given that 500 people went for only shopping. ### Step 3: Set up variables for the other groups. - Let: - \( x \) = number of people who went for both Movies and Dine-out (but not shopping) - \( y \) = number of people who went for all three activities - \( z \) = number of people who went for both Shopping and Dine-out (but not Movies) ### Step 4: Establish relationships based on the information given. - The number of people who went for only Movies = \( \frac{x}{2} \) (half of those who went for both Movies and Dine-out). - We know that \( y = z \) (the number of people who went for all activities is equal to those who went for both Shopping and Dine-out). - It is also given that 100 people went for both Shopping and Movies (but not Dine-out). ### Step 5: Set up equations based on the total number of people who went shopping. - Total people who went shopping = 500 (only shopping) + 100 (shopping and movies) + z (shopping and dine-out) + y (all three activities). - Therefore, we have: \[ 500 + 100 + z + y = 1080 \] Since \( y = z \), we can substitute \( y \) with \( z \): \[ 500 + 100 + z + z = 1080 \implies 600 + 2z = 1080 \implies 2z = 480 \implies z = 240 \] Thus, \( y = 240 \). ### Step 6: Find the value of \( x \). - Now we can find \( x \) using the total number of people who dined out: - Total people who dined out = 1200 - This includes: - 500 (only dine-out) - \( x \) (dine-out and movies) - \( z = 240 \) (dine-out and shopping) - \( y = 240 \) (all three activities) Therefore: \[ 500 + x + 240 + 240 = 1200 \implies 500 + x + 480 = 1200 \implies x = 1200 - 980 = 220 \] ### Step 7: Calculate the number of people who went for only Dine-out. - Now we can find the number of people who went for only Dine-out: \[ \text{Only Dine-out} = \text{Total Dine-out} - (\text{Only Shopping} + \text{Only Movies} + \text{Dine-out and Movies} + \text{Dine-out and Shopping} + \text{All three}) \] \[ = 1200 - (500 + \frac{x}{2} + x + z + y) \] Substituting the known values: \[ = 1200 - (500 + 110 + 220 + 240 + 240) = 1200 - 1110 = 90 \] ### Final Answer The number of people who went for only Dine-out is **320**.
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