What is the least number by which 450 must be multiplied in order to make it a perfect square?
Question and options
What is the least number by which 450 must be multiplied in order to make it a perfect square?
- 4
- 3
- 2
- 1
Answer and explanation
Correct answer: C - 2
450 = 2 x 3^2 x 5^2; the factor 2 is unpaired, so multiply by 2 to get 900 = 30^2.
Practice for these exams
-
CUSAT CAT Five-Year LL.B.
Related question papers
Related exam syllabi
More solved explanations in Arithmetic
- What is 90% of a number whose 200% is 80 ?
- Travelling at an average speed of 40 km/h, a train reaches its destination on time. If it travels at an average speed of 30 km/h, it is late by 36 minutes. What is…
- Let \(P(x)\) be a quadratic polynomial such that \(\left|\begin{array}{ll} P(0) & P(1) \\ P(0) & P(2) \end{array}\right|=0\) Let \(P(0)=2\) and…
- If x, y, z are natural numbers, then the number of different solutions of the equation x + y + z = 6 are :
- If the sum of three consecutive integers is 15, then their product is :