I just went through the following question in the OG (12th ed). Please let me know how I would know that 6/11 is 0.54545454 in decimal form without a calculator. Is there a trick to know this? I know that is is roughly 54% but I wouldn't have known that the two digits of 5 and 4 are reoccuring.
What is the 25th digit to the right of the decimal point in the decimal form of 6/11?
3
4
5
6
7
The answer is 5.
Digit question
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6/11 = 0.545454...Lookingfor700GMAT wrote:I just went through the following question in the OG (12th ed). Please let me know how I would know that 6/11 is 0.54545454 in decimal form without a calculator. Is there a trick to know this? I know that is is roughly 54% but I wouldn't have known that the two digits of 5 and 4 are reoccuring.
What is the 25th digit to the right of the decimal point in the decimal form of 6/11?
3
4
5
6
7
We see that all the odd-numbered digits (1st, 3rd, etc.) to the right of the decimal point are 5 and all the even-numbered digits (2nd, 4th, etc.) to the right of the decimal point are 4. Since 25 is odd, the 25th digit to the right of the decimal point is 5.
Answer: C
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