A box contains 75 rods; 35 are blue and and 25 of those blue rods are twisted at the \bottom. the rest them are red and 30 of the red ones are clear. What is the and probability of drawing?

Ashifur September 9, 2023 - 19:51

Problem: A box contains 75 rods; 35 are blue and and 25 of those blue rods are twisted at the \bottom. the rest them are red and 30 of the red ones are clear. What is the and probability of drawing?

View all: SONALI & JANATA BANK LTD (SO) IT / ICT WRITTEN QUESTION (MATH) SOLVE | 2018

Correct Answer: $\frac{11}{15}$

Explanation:

Give total rod? =25

ColorTotalTwistedClearBlue352510Red403010

Now. we W1″ find the probability.

A. probability of a blue rod from the box = $\frac{Tota.blue.rods}{Total.rods}$ = $\frac{35}{75}=\frac{7}{15}$

B. Probability of a clear rod from the box = $\frac{Tota.clear.rods}{Total.rods}$ = $\frac{10+10}{75}$ = $\frac{4}{15}$

C. Probability of a blue twisted rod = $\frac{Tota.biue.twisted.rods}{Total.rods}$ = $\frac{25}{75}$ = $\frac{1}{3}$

D.Probability of a clear red rod = $\frac{Tota.clear.red.rods}{Total.rods}$ = $\frac{10}{75}$ = $\frac{2}{15}$

E. Probability of a twisted rod = $\frac{Tota.twisted.reds}{Total.rods}$ = $\frac{25+30}{75}$ = $\frac{11}{15}$

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