Question

What fraction of a clockwise revolution does the hour hand of a clock turn through, when it goes from 7 to 1

Answer 1

To FinD :-

• Fraction of a clockwise revolution does the hour hand of a clock turn through, when it goes from 7 to 1.

SoLuTion :-

When we go from 7 to 1,

We move 6 hours.

So, Fraction of revolution is

$\\ {\Large{\bf{\implies{ \frac{6}{12} }}}}$

$\\ {\Large{\bf{\implies{ \frac{\cancel 6^{1}}{\cancel 12^{2}} }}}}$

${ \red{ \underline{\boxed {\Large{\mathtt{\implies{ \frac{1}{2} }}}}}}}$

Fraction of a clockwise revolution does the hour hand of a clock turn through, when it goes from 7 to 1 is ½.

[ Here we have written 12 because A clock has 12 hours or complete revolution of hand clock is 12 hours. ]

Answer 2

$\huge\bold{\gray{\sf{Answer:}}}$

Explanation:

Learn basic things and concept:-

=>There are 12 hours in an ordinary clock.

=>12 hours makes a complete full revolution

$\bold{\red{\boxed{\boxed{12 \: hours = 1 \: complete \: revolution}}}}$

So, revolution made by hour hand of a clock in 1 hour =1/12 revolution.

=>When the hour hand of a clock goes from 7 to 1 it moves 6 hour

so , revolution made in 6 hour =6×1/12=6/12=$\bold{\pink{1/2}}$

Therefore,hour hand made 1/2 revolution when it goes from 7 to 1.

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Learn more :-

Q:What fraction of a clockwise revolution does the hour hand of a clock turn through, when it goes from 2 to 6

solution :When hour hand of a clock goes from 2 to 6 it moves 4 hour .

So , revolution made in 4 hour =4×1/12=4/12=1/3.