Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized for You

we will pick new questions that match your level based on your Timer History

Track Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:

Since every integer power of 6 results in 6 as the unit digit, it sufficient to know that k is an integer. Whereas Statement (2) doesn't tell us anything about what kind of number k is.

Hallo Vicky think that the answer is correct, no matter what K is the units digit will always be 6...think makes sense P.S: In every case you have 6 multiplied by 6 which is ultimately 6( in units place) no matter what the power is

dear freinds.. u have missed one major pioint.
statement 1)
K is a prime number.
Thus whatever be the value of k =2,3,5...
Units digit of (76)^k will always be 6.

Satement 2)
K > 2 . If it was given that k is integer also, then definitely stat. 2 is also suffecient.
what if k = 2.5, 3.5 or any other fraction...!!

Thus 2 is not suffecient.

Hence Ans - A.

ps: Please be cautious in DS questions that involves variables x, y or k.
Check 1: Note down the domain of these variables - positive, negative, or just real numbers.
Check 2: Be sure to check each statement 1 & 2 for all possible values of these variables x, y within the above domain: positive, negative, fractions, underroots, etc...

It’s been a long time, since I posted. A busy schedule at office and the GMAT preparation, fully tied up with all my free hours. Anyways, now I’m back...

Burritos. Great, engaging session about how to network properly. How better can it get? Hosted jointly by Human Capital Club and Engineers in Management, we had a chance to...