Find the number that should replace the question mark (?): 15% of 480 + \(18\times7=9\times\,?\)
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → 22
Work out the left side first; the missing number is then that value divided by 9.
15% of 480 \(\displaystyle=\frac{15}{100}\times480=72\)
\(18\times7=126\)
Left side \(=72+126=198\)
\(9\times\,?=198\), so \(?=198\div9=22\)