Correct Answer:
A. 28
The correct answer is 28. To find the unknown number, we translate the percentage statement into an algebraic equation and solve for the variable.
Step-by-Step Solution
- Step 1 – Understand the meaning of 175%:
Percent means "per hundred", so 175% = 175/100 = 1.75 in decimal form. - Step 2 – Set up the equation:
Let the required number be x.
"175% of x is 49" translates to:
1.75 × x = 49 - Step 3 – Isolate x:
Divide both sides of the equation by 1.75:
x = 49 ÷ 1.75 - Step 4 – Simplify the division:
To avoid decimals, multiply the numerator and denominator by 100:
x = (49 × 100) ÷ (1.75 × 100) = 4900 ÷ 175
Now divide: 4900 ÷ 175 = 28. - Step 5 – Verification:
Find 175% of 28:
(175/100) × 28 = 1.75 × 28 = 49.
The result matches the given value, confirming the solution.
Hence, the number is 28.