There are only red counters, blue counters and purple counters in a bag. The ratio of the number of red counters to the number o

Question

There are only red counters, blue counters and purple counters in a bag.

The ratio of the number of red counters to the number of blue counters is 3 : 17

Sam takes at random a counter from the bag.

The probability that the
counter is purple is 0.2

Work out the probability that Sam takes a red counter.

in progress 0
Amity 5 months 2021-08-18T15:05:13+00:00 1 Answers 0 views 0

Answers ( )

    0
    2021-08-18T15:06:14+00:00

    Answer:

    0.15

    Step-by-step explanation:

    R:B:P

    3:17:4

    20×0.2=4

    0.2/4=0.05

    P(R)= 0.05×3

    P(R)=0.15

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )