eschn3am wrote:
Call 2 hours 55 minutes 3 hours. and round 3 hours 45 minutes down to 3 hours. Add them up and you get 6 hours. 24/6 = 1/4 but we rounded out 40 minutes, so the answer will be slightly higher than 25%. D is the only one that fits the bill. All in your head in a few seconds
eschn3am, thanks. does that mean you look at the answers before you solve?
Travel09 wrote:
Since the question is asking for an approximate percentage
3:45+2:55 ~ 7 hours
% of day = 7*100/24 ~ 7*100/25= 28%
Answer is D.
If you had 27 and 29 as options you would probably need to do more accurate calculations. In this particular case while approximating values we increase both numerator and denominator so our calculations should be close
I chose this one for me.
thanks all, each one got a kodus for his\hers efforts