Question

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 852 contains 170 green, one-headed Jolos; 284 purple, two-headed Jolos; and 430 one-headed Jolos. One-headed Two-headed Total Green 170 Purple 284 Total 430 852 How many green Jolos are there in Balan's colony? O A. 138 B. 308 O C. 422 D. 260​

Answer 1

Answer:

• B. 308

Step-by-step explanation:

• Table is given below
• Find the missing values.
• The one we are looking for is total of green = y.

                 |              1 -H        |       2-H          |       Total

Green       |           170            |          x           |       y      

Purple       |            z              |       284          |       w        

Total         |            430          |          v            |      852      

• z = 430 - 170 = 260
• w = 260 + 284 = 544
• y = 852 - 544 = 308
• v = 852 - 430 = 422

Correct choice is B

Answer 2

Answer:

308

Step-by-step explanation: