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There are two numbers. Four times the fi...

There are two numbers. Four times the first exceeds seven times the second by 2. Sum of two times the first and three times the second in 92. Find the numbers.

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To solve the problem, we need to find two numbers based on the given conditions. Let's denote the first number as \( x \) and the second number as \( y \). ### Step 1: Set up the equations based on the problem statement. From the first part of the problem, we know: - Four times the first number exceeds seven times the second number by 2. This can be expressed as: \[ 4x - 7y = 2 \quad \text{(Equation 1)} \] From the second part of the problem, we know: - The sum of two times the first number and three times the second number is 92. This can be expressed as: \[ 2x + 3y = 92 \quad \text{(Equation 2)} \] ### Step 2: Solve Equation 2 for one variable. Let's solve Equation 2 for \( x \): \[ 2x + 3y = 92 \] Subtract \( 3y \) from both sides: \[ 2x = 92 - 3y \] Now divide both sides by 2: \[ x = \frac{92 - 3y}{2} \quad \text{(Equation 3)} \] ### Step 3: Substitute Equation 3 into Equation 1. Now we will substitute \( x \) from Equation 3 into Equation 1: \[ 4\left(\frac{92 - 3y}{2}\right) - 7y = 2 \] Multiply through by 2 to eliminate the fraction: \[ 4(92 - 3y) - 14y = 4 \] Distributing the 4: \[ 368 - 12y - 14y = 4 \] Combine like terms: \[ 368 - 26y = 4 \] Subtract 368 from both sides: \[ -26y = 4 - 368 \] \[ -26y = -364 \] Now divide by -26: \[ y = \frac{-364}{-26} = 14 \] ### Step 4: Substitute \( y \) back to find \( x \). Now that we have \( y = 14 \), substitute it back into Equation 3 to find \( x \): \[ x = \frac{92 - 3(14)}{2} \] Calculate: \[ x = \frac{92 - 42}{2} = \frac{50}{2} = 25 \] ### Conclusion: The two numbers are: \[ x = 25 \quad \text{and} \quad y = 14 \] ### Final Answer: The two numbers are 25 and 14. ---
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NAGEEN PRAKASHAN ENGLISH-LINEAR EQUATIONS IN TWO VARIABLES -Exercise 3e
  1. Sum of two numbers is 35 and their difference is 13. Find the numbers.

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  2. Find two numbers, which differ by 7, such that twice the greater added...

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  3. There are two numbers. Four times the first exceeds seven times the se...

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  4. If I is added to each of the two certain numbers, their ratio is 1 : 2...

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  5. If three times the larger of the two numbers is divided by the smaller...

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  6. The sum of the digits of a two digit number is 10. If 18 is subtracted...

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  7. In a two digit number, the units digit is twice the tens digit. If 27 ...

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  8. A two digit number is obtained by either multiplying the sum of the di...

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  9. Seven times a two-digit number is equal to four times the number ob...

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  10. A fraction becomes 4/5, if 1 is added to both numerator and denomin...

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  11. A fraction is such that if the numerator is multiplied by 3 and the ...

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  12. If the denominator of a fraction is added to its numerator and the nu...

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  13. 4 chairs and 3 tables cost Rs 2100 and 5 chairs and 2 tables cost R...

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  14. The cost of 3 oranges and 12 apples is Rs. 9.60 and the cost of 5 oran...

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  15. From Delhi station, if we buy 2 tickets for station A and 3 tickets fo...

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  16. A railway half ticket costs half the full fare and the reservation ...

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  17. Point A and B are 90 km apart from each other on a highway. A car s...

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  18. in the triangle ABC , /A=x^@,/B=3x^@,/C=y^@. if 3y-5x=30 then prove th...

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  19. In a triangles ABC , angle A = x^(@) , angle B = (3x - 2) ^(@) and a...

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  20. The largest angle of a triangle is twice the sum of the other two. The...

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