Blood Donation Volume Calculation

This solution calculates the total volume of blood Rakesh donates over a 6-year period.

Donation Frequency Analysis

• Rakesh donates blood twice every 3 years.
• The time period considered is 6 years.

Calculating Total Donations

To find the total number of donations in 6 years:

• Number of 3-year periods in 6 years = $ \frac{6 \text{ years}}{3 \text{ years}} = 2 $ periods.
• Total donations = Number of periods $ \times $ Donations per period
• Total donations = $ 2 \times 2 = 4 $ donations.

Calculating Total Volume Donated

Each donation is 330 ml.

• Total volume in ml = Total donations $ \times $ Volume per donation
• Total volume in ml = $ 4 \times 330 \text{ ml} = 1320 \text{ ml} $.

Converting Volume to Litres

To convert millilitres (ml) to litres (L), divide by 1000.

• Total volume in L = $ \frac{1320 \text{ ml}}{1000 \text{ ml/L}} $
• Total volume in L = $ 1.32 \text{ L} $.

Therefore, Rakesh will donate 1.32 litres of blood in 6 years.