Question

When asked in an exam how much time is left,the teacher answered that the amount of time left is 1/4 of the time already completed,if total time of exam was 3 hours.how much time is left

Answer 1

Answer:

1/6

Explanation:

GIVEN- When asked in an exam how much time left, the teacher answered that the amount of time left is 1/5 of the time

TO FIND- left time

SOLUTION- Let say Total Time=T

& Time Completed)=C

Time Left =T-C Time Left =(1/5)

Time Completed =>T-C=(1/5)

C =>5T-5C

C => 5T=6C =>

C=5T/6

Time Lef =T-C =

-7T/6 =T/6

(1/6) of Time Is left

FINAL ANSWER- 1/6

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Answer 2

Answer:

Concept:

Time is the ongoing progression of existence and things that happen in what seems to be an irrevocable order from the past, present, and forward into the future. It is a quantity that is a part of several measurements that are used to compare the length of events or the gaps between them, to compare how long they last, to order events, and to measure how quickly things change in the real world or in our conscious experience. Time is commonly referred to as a 4th dimension in addition to the three spatial dimensions.

Given:

When questioned in an exam how much time was left, the teacher said that if the exam's total length was three hours, the amount of time left was one-fourth of that amount. how long is left?

Find:

find the answer for the given question

Answer:

Total Time $=T$

Time Completed $=C$

Time Left $=T-C$

Time Left $=(\frac{1}{5} )$

Time Completed $=T-C=(\frac{1}{5} )$

$C =5T-5C$

$C = > 5T=6C$

$C=\frac{5T}{6}$

Time Left $=T-C$

                $=\frac{-7T}{6} =\frac{T}{6}$

                $=\frac{1}{6}$

Time left is $=(\frac{1}{6} )$

Divide the distance travelled by the rate to find the time. DIVIDE DISTANCE BY SPEED TO GET TIME. Multiplying speed and time will get the distance. These equations can be represented more simply as s=d/t, where s stands for speed, d for distance, and t for time. The SI base unit is the second (s). A minute (min) is made up of 60 seconds, and an hour is made up of 60 minutes, or 3600 seconds. A day typically lasts 24 hours or 86,400 seconds, however due to daylight saving time and leap seconds, the length of a calendar day might change.

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