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Q.

In a clock for one day an hour hand will rotate(In grades) is

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a

360^{g}

b

100^{g}

c

400^{g}

d

800^{g}

answer is D.

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Detailed Solution

For every 12 hrs hour hand rotates

360 °

for one day 24 hrs hour hand will rotate

720 °

$\frac{D}{90 °} = \frac{G}{100 °}$

$\frac{720 °}{90 °} = \frac{G}{100 °}$

$G = 800^{g}$

In one day hour hand will rotate $800^{g}$ .

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