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In a test Abha gets twice the marks as t...

In a test Abha gets twice the marks as that of Palak. Two times Abha.s marks and three times Palak.s marks make 280.
If Palak gets x marks, Abha gets ________marks.

A

80

B

40

C

60

D

100

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem step by step, we will follow the given information and derive the necessary equations. ### Step 1: Define the variables Let Palak's marks be represented by \( x \). ### Step 2: Express Abha's marks in terms of \( x \) According to the problem, Abha gets twice the marks of Palak. Therefore, we can express Abha's marks as: \[ \text{Abha's marks} = 2x \] ### Step 3: Set up the equation based on the second condition The problem states that two times Abha's marks and three times Palak's marks equal 280. We can write this as: \[ 2 \times (\text{Abha's marks}) + 3 \times (\text{Palak's marks}) = 280 \] Substituting the expressions we have: \[ 2 \times (2x) + 3 \times (x) = 280 \] ### Step 4: Simplify the equation Now, simplify the left side of the equation: \[ 4x + 3x = 280 \] Combine like terms: \[ 7x = 280 \] ### Step 5: Solve for \( x \) To find \( x \), divide both sides of the equation by 7: \[ x = \frac{280}{7} \] Calculating this gives: \[ x = 40 \] ### Step 6: Calculate Abha's marks Now that we have the value of \( x \), we can find Abha's marks: \[ \text{Abha's marks} = 2x = 2 \times 40 \] Calculating this gives: \[ \text{Abha's marks} = 80 \] ### Final Answer Abha gets **80 marks**. ---
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NCERT EXEMPLAR-SIMPLE EQUATIONS-EXERCISE(Fill in the blanks )
  1. The sum of two numbers is 43 and their difference is 23. The solution ...

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  2. The sum of two numbers is 60 and their difference is 30. Then the numb...

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  3. In a test Abha gets twice the marks as that of Palak. Two times Abha.s...

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  4. The sum of two numbers is 73 and their difference is 55. The equation ...

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  5. The sum of two numbers is 60 and their difference is 30. Then the solu...

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  6. Marks obtained by Abha are .

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  7. The length of a rectangle is two times its breadth. Its perimeter is 6...

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  8. Perimeter in terms of x is .

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  9. The equation formed is .

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  10. The solution of the equation is .

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  11. In a bag there are 5 and 2 rupee coins. If they are equal in number an...

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  12. The worth of x coins of Rs 2 each .

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  13. The equation formed is .

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  14. A bag contains 15 one rupee coins, 25 two rupee coins and 10 five rupe...

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  15. In a Mathematics quiz, 30 prizes consisting of 1st and 2nd prizes wort...

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  16. In a Mathematics quiz, 30 prizes consisting of 1st and 2nd prizes only...

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  17. Write all the natural numbers from 2 to 13. What fraction of them are ...

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  18. The solution of the equation 3x-2=7 is .

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  19. If the sum of two numbers is 39, and one exceeds the other by 11, then...

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  20. If z+3 = 5, then z = .

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