A presentation consists of 20 slides. Slides 1-5 are introductory slides shown for 30 s each. Slides 6-15 are content slides; each has a base display time of 90 s and contains a video that lasts 20 % of the base time, which must be played in addition to the base time. Slides 16-20 are summary slides shown for 45 s each. Between every pair of consecutive slides a transition animation of 2 s is used.

The presenter wants the total presentation time not to exceed 25 minutes.

Determine whether the current timing plan satisfies this limit. If it does not, calculate the minimum reduction (in seconds) required in the average display time of the content slides (keeping all other times unchanged) so that the total time is exactly 25 minutes.

Question

A presentation consists of 20 slides. Slides 1-5 are introductory slides shown for 30 s each. Slides 6-15 are content slides; each has a base display time of 90 s and contains a video that lasts 20 % of the base time, which must be played in addition to the base time. Slides 16-20 are summary slides shown for 45 s each. Between every pair of consecutive slides a transition animation of 2 s is used.

The presenter wants the total presentation time not to exceed 25 minutes.

Determine whether the current timing plan satisfies this limit. If it does not, calculate the minimum reduction (in seconds) required in the average display time of the content slides (keeping all other times unchanged) so that the total time is exactly 25 minutes.

Accepted Answer

Fits; 7 seconds spare (no reduction needed).

City Guilds Model Questions Vol1 2022 Information Technology Question 14

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