WAEC Mathematics 2022 Paper

Concept:Rounding a product to four significant figures means keeping only the first four important digits and replacing the rest with place-value zeros.Explanation:First multiply the two values:$573.06 \times 184.25 = 105586.305$Write the digits that matter from the left:The first four significant figures are $1$, $0$, $5$, and $5$.The next digit is $8$, which is greater than $5$, so the fourth digit increases from $5$ to $6$.Now restore the place value to get $105600$.So the value correct to four significant figures is:$105600$This can also be written as $1.056 \times 10^5$.Answer:$105600$Hence the correct option is A.