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.

It appears that you are browsing the GMAT Club forum unregistered!

Signing up is free, quick, and confidential.
Join other 350,000 members and get the full benefits of GMAT Club

Registration gives you:

Tests

Take 11 tests and quizzes from GMAT Club and leading GMAT prep companies such as Manhattan GMAT,
Knewton, and others. All are free for GMAT Club members.

Applicant Stats

View detailed applicant stats such as GPA, GMAT score, work experience, location, application
status, and more

Books/Downloads

Download thousands of study notes,
question collections, GMAT Club’s
Grammar and Math books.
All are free!

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:

Re: can some one suggest an easy way to solve this. [#permalink]
02 Jan 2013, 19:53

HiteshPunjabi wrote:

Which of the following is equal to (0.9998) 2 ?

0.99950014

0.99950234

0.99960004

0.99960064

0.99961024

Dear Hitesh,

You see the difference between the numbers starts from the last but one digit. So it is enough to multiply and get the last two digits only. Here in the case of 0.9998 x 0.9998, multiply only 98 and 98, you get 9604. The last but one digit is 0 which is only in choice C. _________________

Re: What is the value of the following (0.9998)^2 ? [#permalink]
17 Apr 2013, 13:39

Archit143 wrote:

What is the value of the following (0.9998)^2 ?

A 0.99950014 B 0.99950234 C 0.99960004 D 0.99960064 E 0.99961024

I began to multiply .9998 x .9998. I knew the units digit would be 4 (8 x 8 = 64) and then I figured out the hundreds digit by multiplying 9 x 8 + 6 (from the 64) = 84. Rather than doing the rest of the math, I skipped to the tens digit in the second figure. That gave me 9 x 8 = 72 or 2 in the tens column plus the 8 gave me 04 for the first two digits. Figured out it was C.

Elaborating 100's place : 9x8 + 9x9 + 9x8 +15 = 240 => 100s place is 0 with carry over 24

1000 place : 9x8 +9x9 + 9x9 + 9x8 + 24 = 330 => 1000 place is 0 with carry over 33 and so on.... _________________

You've been walking the ocean's edge, holding up your robes to keep them dry. You must dive naked under, and deeper under, a thousand times deeper! - Rumi

Re: Which of the following is equal to 0.9998^2 ? [#permalink]
29 Apr 2013, 04:46

Expert's post

HiteshPunjabi wrote:

Which of the following is equal to 0.9998^2 ?

A. 0.99950014 B. 0.99950234 C. 0.99960004 D. 0.99960064 E. 0.99961024

For the sake of convenience, let us assume it to be= 9998*9998 = 9998*(10000-2) = 99980000-19996 --> the units digit is 4 and the tens a 0. Only C satisfies.

Re: Which of the following is equal to 0.9998^2 ? [#permalink]
08 Dec 2014, 07:48

Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email. _________________

Essay B for Stanford GSB will essentially ask you to explain why you’re doing what you’re doing. Namely, the essay wants to know, A) why you’re seeking...

The following pictures perfectly describe what I’ve been up to these days. MBA is an extremely valuable tool in your career, no doubt, just that it is also...