2025 CGSS PRELIMS P1 Q12

2025 CGSS PRELIMS P1 Q12

Secondary 4
5 marks
  1. Express 630 as a product of its prime factors.[1]
  2. Find the smallest integer value of \(m\) such that \(630m\) is a perfect square.[1]
  3. Given that \(588=2^2\times3\times7^2\), find the smallest integer value of \(k\) such that \(630k\) is a multiple of 588.[1]
  4. A rectangular piece of paper measuring \(588\text{ mm}\) and \(630\text{ mm}\) is being cut into identical squares with no waste. Find the minimum number of squares that can be obtained.[2]

Solution:

Solution locked

Sign in to view the step-by-step solution

Similar questions are unavailable for this question.
Answer:(a) \(2\times3^2\times5\times7\) (b) \(70\) (c) \(14\) (d) \(210\)

Need help? Join our JC Math tuition classes.

Learn more