Medium
Of three consecutive natural numbers, the square of the smallest is 308025 and the square of the next is 309136. What is the square of the largest?
Explanation
Explanation
The smallest number is the square root of 308025, which is 555, so the three consecutive numbers are 555, 556, and 557. The square of the largest (557) is 557 squared = 310249.
PRO TIP
Re-check your working by substituting the answer back into the original question.