Ocre bought a mixtures of pencils. 2/3 of the pencils were green. 1/2 of the remaining pencils were white. There were 5 blue pencils. How many pencils were there altogther?
Ocre bought a mixtures of pencils. 2/3 of the pencils were green. 1/2 of the remaining pencils were white. There were 5 blue pencils. How many pencils were there altogther?
Assuming that the information is complete and the green, white, and blue pencils are all there are.
So you've got the green pencils, and then you have all the remaining pencils, which are white and blue..
Half of the remaining pencils are white, the other half are blue. There are 5 blue pencils.
Therefore there are 5 white pencils. Half and half. So those 10 pencils are the remaining 1/3.
10 pencils are 1/3 of the pencils, so there are 30 pencils altogether.
20 green, 5 white, 5 blue.
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