The Square Root of 306.25 is Exactly GMAT Problem Solving

Question: The square root of 306.25 is exactly?

1. 0.175
2. 1.75
3. 17.5
4. 175
5. 1750

Answer:

Approach Solution (1):

\(17^2=17*17=289\)

\(18^2=18*18=324\)

Closest option is 17.5

Correct Option: C

Approach Solution (2):

Only answer choice C looks as A, B are too small and D, E are too big
17 * 17 = 289 and 18 * 18 = 324

306.5 lies in between

Correct Option: C

“The square root of 306.25 is exactly?”- is a topic of the GMAT Quantitative reasoning section of GMAT. This question has been taken from the book “GMAT Official Guide Quantitative Review”. To solve GMAT Problem Solving questions a student must have knowledge about a good amount of qualitative skills. The GMAT Quant topic in the problem-solving part requires calculative mathematical problems that should be solved with proper mathematical knowledge.

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