Question

4 Professor Potts needs to find the weight of each test
tube for his experiments.
He had three colours:
The professor knows that when green and red are
on the scales together they weight 440 grams.
When green and yellow are on the scales together
they weigh 320 grams.
When yellow and red are on the scales together
they weigh 180 grams.
How much does each colour tube weigh?​

Answer 1

Answer:

g+r= 440

g+y=320

y+r=180

so g=290

r=150

y=30

so the weight of green tube is 290 gram

weight of red tube is 150 gram

and weight of yellow tube is 30 gram