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The Sun is approximately 1,400 million kilometers from the p [#permalink]  17 Feb 2017, 02:50
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The Sun is approximately 1,400 million kilometers from the planet Saturn, and light from the Sun travels to Saturn at the rate of approximately 300,000 kilometers per second. Approximately how many minutes does it take for light to travel from the Sun to Saturn?

A) 80

B) 130

C) 160

D) 280

E) 360
Spoiler: OA

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Re: The Sun is approximately 1,400 million kilometers from the p [#permalink]  17 Feb 2017, 11:38
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Explanation

This is a simple arithmetic problem. We know that Blue Running Grey Women's Shoe NIKE Viale s p e e d = D i s t a n c e t i m e .

Distance between sun and saturn = 1400 Million Kms = 1,400,000,000.
Speed of light = 300,000 km/sec

Blue Running Shoe Grey Women's NIKE Viale
So Solar Shoe 17 Ace White Men's adidas Black J Skate 3 Fg Yellow 6qgzWU t i m e = D i s t a n c e S p e e d = 1 , 400 , 000 , 000 300 , 000 = 4666.66666667 secs.

or 4666.66666667 seconds = 4666.66666667 60 minutes 77.77 minutes.

Hence option A is correct.
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Re: The Sun is approximately 1,400 million kilometers from the p [PU Dress Business Shoe Flat Leather Black Italian Oxford Loafer Men Alligator Formal Gaorui qXT4AxwEW]  29 May 2018, 14:56
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Carcass wrote:


The Sun is approximately 1,400 million kilometers from the planet Saturn, and light from the Sun travels to Saturn at the rate of approximately 300,000 kilometers per second. Approximately how many minutes does it take for light to travel from the Sun to Saturn?

A) 80

B) 130

C) 160

D) 280

E) 360


Since 1 million = 10^6, we can re-express the distance from the Sun to Saturn as 1,400 x 10^6 kilometers. We can also express the light’s rate as 3 x 10^5. The time to travel from the Sun to Saturn, in seconds, is:

(1,400 x 10^6)/(3 x 10^5) = (1,400/3) x 10^1 sec = 14,000/3

In minutes, that is (14,000/3)/60 = 14,000/180 = 1400/18 = 700/9 ≈ 80.

Answer: A
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Re: The Sun is approximately 1,400 million kilometers from the p   [PU Dress Business Shoe Flat Leather Black Italian Oxford Loafer Men Alligator Formal Gaorui qXT4AxwEW] 29 May 2018, 14:56
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