A metal ball cools from 64^(@)C to 50^(@...

A metal ball cools from `64^(@)C` to `50^(@)C` in 10 minutes and to `42^(@)C` in the next 10 minutes. The ratio of the rates of fall of temperature during the two intervals is

A

`(4)/(7)`

B

`(7)/(4)`

C

2

D

2.5

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`7 : 4`

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FEBRUARY 2014
GURUKUL PUBLICATION - MAHARASHTRA PREVIOUS YEAR PAPERS|Exercise SECTION-II|21 Videos
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GURUKUL PUBLICATION - MAHARASHTRA PREVIOUS YEAR PAPERS|Exercise SECTION-II|21 Videos

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