C had 3 out of 5 of 20 items required to start the school year.What fraction of the number of items he was lacking ?

i get 2/5.Is it right ?

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- June 29th 2010, 03:04 AMhaftakhanRatio Problem
C had 3 out of 5 of 20 items required to start the school year.What fraction of the number of items he was lacking ?

i get 2/5.Is it right ? - June 29th 2010, 03:26 AMmr fantastic
- June 29th 2010, 03:35 AMhaftakhan
If the ratio of Saturated to unsaturated fatty acids in a cell membrane is 9 to 1 and there are a total of 69 billion fatty acids molecules.How many of them are saturated ?

9/10 *69=62.1 billion.

is it right ? - June 29th 2010, 03:39 AMmr fantastic
- June 29th 2010, 03:42 AMhaftakhan
is there any calculation required for the 1st question ?

As i didn't do any calculation to get to the answer.it was simple.

I will post in new thread from next time