Question

a bag contains 40 blue and green Marbles if one marble is chosen at random if the probability of getting green is 0.4 find the number blue marbles​

Answer 1

$\tt\it\bf\it\large\bm{\mathcal{\fcolorbox{blue}{white}{\blue{Given:-}}}}$

☣️Total no.of marbles ➡️ 40

☣️ Probability of getting green marbles ➡️ 0.4

$\tt\it\bf\it\large\bm{\mathcal{\fcolorbox{blue}{white}{\orange{To\:Find:-}}}}$

☣️ No. of blue marbles ❓

$\tt\it\bf\it\large\bm{\mathcal{\fcolorbox{blue}{white}{\green{Solution:-}}}}$

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Let, the number of green marbles be x

Probability of getting green marble = x/40

=> 0.4 = x/40

=> x= 40 * 0.4

=> x= 16

so, no. of green marble is 16.

•°• no.of blue marble = Total marble - no.

of green marble

=> 40 - 16 = 24

Hence, no.of blue marble is 24.

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