Question

The earth makes a complete rotation about its axis in 24h.Through what angle will it turn in 3h 20 min?
a) 60°
b) 50°
c) 70°
d) 90°

give answer with explanation

finally genius rank mil gya reee! ​

Answer 1

Answer:

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in 3h 20 min = 3 + $\frac{20}{60}$ hours

= 3 + $\frac{1}{3}$ = $\frac{9}{3}$ + $\frac{1}{3}$ = $\frac{10}{3}$ hours

earth rotates 360° in 24 hour

in one hour = $\frac{360}{24}$

in $\frac{10}{3}$ hours = $\frac{360}{24}$ × $\frac{10}{3}$ = $\frac{3600}{72}$

= 50°

therefore option b) 50° is correct☑ ツ

Answer 2

Answer:

b) 50°

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