Home
Class 12
MATHS
In a survery it is to be found that 70%...

In a survery it is to be found that `70%` of employees like bananas and `64%` like apples. If `x%` like both bananas and apples, then

A

`x ge34`

B

`xle64`

C

`34lexle64`

D

all of these

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem, we need to determine the possible values of \( x \), where \( x \) represents the percentage of employees who like both bananas and apples. ### Step-by-Step Solution: 1. **Define the Variables:** - Let \( n(A) \) be the percentage of employees who like bananas, which is \( 70\% \). - Let \( n(B) \) be the percentage of employees who like apples, which is \( 64\% \). - Let \( n(A \cap B) \) be the percentage of employees who like both bananas and apples, which is \( x\% \). 2. **Use the Formula for Union of Two Sets:** The formula for the union of two sets is given by: \[ n(A \cup B) = n(A) + n(B) - n(A \cap B) \] Substituting the known values: \[ n(A \cup B) = 70 + 64 - x \] 3. **Determine the Maximum Value of the Union:** Since \( n(A \cup B) \) cannot exceed \( 100\% \) (the total percentage of employees), we set up the inequality: \[ 70 + 64 - x \leq 100 \] 4. **Simplify the Inequality:** Simplifying the inequality: \[ 134 - x \leq 100 \] Rearranging gives: \[ x \geq 34 \] 5. **Determine the Maximum Value of \( x \):** The intersection \( n(A \cap B) \) cannot exceed the individual sets, so: \[ n(A \cap B) \leq n(A) \quad \text{and} \quad n(A \cap B) \leq n(B) \] This means: \[ x \leq 70 \quad \text{and} \quad x \leq 64 \] 6. **Combine the Inequalities:** From the inequalities derived: - \( x \geq 34 \) - \( x \leq 64 \) Therefore, we can conclude: \[ 34 \leq x \leq 64 \] ### Final Result: The possible values of \( x \) range from \( 34\% \) to \( 64\% \).
Promotional Banner

Topper's Solved these Questions

  • MODEL TEST PAPER 3

    MTG-WBJEE|Exercise CATEGORY 2 : SINGLE OPTION CORRECT TYPE|15 Videos
  • MODEL TEST PAPER 3

    MTG-WBJEE|Exercise CATEGORY 3 : One or More than One Option Correct Type|10 Videos
  • MODEL TEST PAPER 2

    MTG-WBJEE|Exercise CATEGORY 3 : One or More than One Option Correct Type|10 Videos
  • PERMUTATIONS AND COMBINATIONS

    MTG-WBJEE|Exercise WB JEE Previous years questions (Category 3 : More than One Option correct type)|1 Videos

Similar Questions

Explore conceptually related problems

In a survey it is to be found that 70% of employees like bananas and 64% like apples. If x% like both bananas and apples, then

A survey shows that 63% of the Americans like cheese where as 76% like apples. If x% of the Americans like both cheese and apples then find x.

A survey show that 63% of the Indians like cheese whereas 76% like apples. If x% of the Indians like both cheese and apples, then find the range of x.

A survey shows that 63% of the Indians like cheese, whereas 76% like apples. If x % of the Indians like both cheese and apples, then x can be

It is known from a survey that 60% American like mangoes and 70% like apples. How many per cent of Americans like both mangoes and apples ?

A survey shows that 73% of the Indians like apples, whereas 65% like oranges. What percentage of Indians like both apples and oranges ?

A survey shows that 76% of the Indians like organges whereas 62% like bananas .The percentage of Indians like both organges and bananas is