saswata4s wrote:

If m = 0.008163 and M is the decimal obtained by rounding m to the nearest to ten thousandth, what is the value of M + m?

(a) 0.0016

(b) 0.016263

(c) 0.016363

(d) 0.162

(e) 1.6

Given: m = 0.008163

The digit 1 is in ten thousandth place of 0.008

163

Since next digit (in the hundred thousandth position) is greater than 4, so we need to ROUND UP

So, when we round 0.008

163 to the nearest to ten thousandth, we get: 0.008

2In other words, M = 0.008

2So, M + m = 0.008

2 + 0.008163

= 0.016363

Answer: C

Cheers,

Brent

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Brent Hanneson – Founder of gmatprepnow.com