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Directions : The question is based on the pie chart given below.Constituents of Sunrays received in 1 minute.

Total sunrays received in 1 minute = 3600 units.

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 in 1 unit of Vitamin D?

Option 1)
$\dpi{80} 7\frac{2}{3}$
Option 2)
$5\frac{1}{3}$
Option 3)
$5\frac{2}{3}$
Option 4)
$6\frac{2}{3}$
Option 5)
$6\frac{1}{3}$

Answers (1)

best_answer

1 unit vitamin D = 30 units of beta ray

So 40 units of vitamin D = 40 x 30 = 1200 unit

Since in 1 unit 180 unit of beta ray is received

So for 1200 unit = $\frac{1200}{180}=6\frac{2}{3}$

Posted by

rishi.raj

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