Symbiosis National Aptitude Test SNAP 2012 Paper

Question : 39 of 150

Marks: +1, -0

How many minutes of exposure to the sun in a day would be enough to ensure that the body receives enough amount of Vitamin D, given that the body requires 40 units of Vitamin D, every day and that 30 units of Beta rays generate one unit of Vitamin D?

$5 1/3$
$5 2/3$
$6 1/3$
$6 2/3$

Validate

Solution:

(40 × 30 = ) 1200 units of Beta Rays will require to generate 40 units of vitamin D.
∴ Required time =

{1200}/{180}

6 2/3

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