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The sum of two consecutive odd numbers i...

The sum of two consecutive odd numbers is 56. Find the numbers.

A

26, 27

B

30, 31

C

27, 29

D

29, 31

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The correct Answer is:
To solve the problem of finding two consecutive odd numbers whose sum is 56, we can follow these steps: ### Step 1: Define the Variables Let the first consecutive odd number be represented as \( x \). Since we are dealing with consecutive odd numbers, the next odd number can be expressed as \( x + 2 \). ### Step 2: Set Up the Equation According to the problem, the sum of these two consecutive odd numbers is 56. Therefore, we can write the equation: \[ x + (x + 2) = 56 \] ### Step 3: Simplify the Equation Now, simplify the left side of the equation: \[ x + x + 2 = 56 \] This simplifies to: \[ 2x + 2 = 56 \] ### Step 4: Isolate the Variable Next, we need to isolate \( x \). First, subtract 2 from both sides: \[ 2x = 56 - 2 \] This simplifies to: \[ 2x = 54 \] ### Step 5: Solve for \( x \) Now, divide both sides by 2 to find the value of \( x \): \[ x = \frac{54}{2} \] This gives us: \[ x = 27 \] ### Step 6: Find the Consecutive Odd Numbers Now that we have \( x \), we can find the two consecutive odd numbers: 1. The first odd number is \( x = 27 \). 2. The second odd number is \( x + 2 = 27 + 2 = 29 \). ### Conclusion The two consecutive odd numbers are **27 and 29**. ---
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ICSE-LINEAR EQUATIONS-EXERCISE 14B
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