GRE Sample Test 5 Quantitative Reasoning 1

Question : 14 of 20

Marks: +1, -0

An asteroid travels through space at a constant rate of 2.6 million feet per day. If the distance between the asteroid and a certain planet is 10.2 million feet, approximately how many seconds will it take the asteroid to reach the planet?

80000
120000
200000
250000
350000

Validate

Solution:

Plug the given values into the R × T = D formula. The rate is 2.5 million feet per day and the distance is 10.2 million feet. Thus: 2.6 million × T = 10.2 million → T =

{10.2 \million}/{2.6 \million}

= approximately 4 days. Now, convert days to seconds. 1 day = 24 hours = 60(24) minutes = 60(60)(24) seconds = 86,400 seconds. So, the number of seconds in 4 days is 86,400 × 4 = 345,600 seconds. The closest answer is 350,000.

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