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A faraway planet is populated by creatures called Jolos. All Jolos are either green or purple and either one-headed or two-headed, Balan, who lives on this planet, does a survey and finds that her colony of 140 contains 30 green, one-headed Jolos; 45 purple, two-headed Jolos, and 75 one-headed Jolos.How many green Jolos are there in Balans Colony?A. 20B. 50C. 65D. 45

A faraway planet is populated by creatures called Jolos All Jolos are either green or purple and either oneheaded or twoheaded Balan who lives on this planet do class=

Respuesta :

First, we find the total of two-headed Jolos by subtracting the total 140 and the total of one-headed 75.

[tex]140-75=65[/tex]

There are 65 two-headed Jolos in total.

Then, we find the number of two-headed green Jolos by subtracting the total of two-headed 65 and the number of two-headed purple Jolos.

[tex]65-45=20[/tex]

There are 20 two-headed green Jolos.

At last, we sum the one-headed and two-headed green Jolos to find their total

[tex]30+20=50[/tex]

There are 50 green Jolos in total.

The right answer is B.

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