Sunday

December 21, 2014

December 21, 2014

Posted by **ujjval** on Monday, February 11, 2013 at 10:00am.

A clock was 4

minutes slow at noon on Friday and 4 minutes 36 seconds fast on

the following Friday at 4 P.M. If the clock gains uniformly, when

does it show the correct time?

A:8 P.M. on Monday (after

second Friday)

B:8 P.M. on Monday

(between two Fridays)

C:10 P.M. on Monday

(after second Friday)

D:8 A.M. on Monday

(between two Fridays)

- maths -
**Steve**, Monday, February 11, 2013 at 3:15pmtime elapsed was 7 days + 4 hours = 619200 seconds

during that time the amount the clock was off went from -240 to +276, so it gained 516 seconds.

So, if it was right on after x seconds, then

-240 + 516n/619200 = 0

x = 288000 seconds = 3 days 8:00:00

so, (B)

**Answer this Question**

**Related Questions**

math - On Friday morning two clocks are correctly set at 6 a.m. One clock gains ...

math - On Friday morning two clocks are correctly set at 6 a.m. One clock gains ...

8th grade math - The time is now between 3 and 4 o'clock. Fifty-four minutes ago...

8th grade math - The time is now between 3 and 4 o'clock. Fifty-four minutes ago...

maths - A clock was exactly on time at noon on Monday. At 2 P.M. on Wednesday, ...

Math - How do you draw 56 degrees 10 minutes and 26 seconds on paper? protractor...

Algebra - At a certain time, Janice notices that her digital watch reads (a) ...

maths - if a clock gains 19 1/4 seconds in on week, how many seconds will it ...

Pre-Calculous (Trig) - The Singapore Flyer, currently the world's largest Ferris...

maths - show tha minute hand of a clock gains 5 degree 30 minutes over the hour ...