Question

ajay had a box containing 20 red marbles and 30 green marbles. rajesh gave him 15 red and 5 green marbles to put in the box.then the probability of picking a red marbles from the box is​

Answer 1

Step-by-step explanation:

No. of marbles ajay had=

red=20

green=30

No. of marbles Rajesh said ajay to put in the box=

red=15

green=5

Now, we have to add no.of red and green marbles

Total no. of red marbles in the box = 20+15=35

Total no. of green marbles in the box= 30+5=35

Total no. of marbles in the box= 70

Probability of picking a red marbles = 35/70

=1/2

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