In four schools $B_{1}, B_{2}, B_{3}, B_{4}$ the percentage of girls students is 12, 20, 13, 17 respectively. From a school selected at random, one student is picked up at random and it is found that the student is a girl. The probability that the school selected is $B_{2}$ , is

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B
Favorable number of cases = $^{20} C_{1} = 20$
Sample space = $^{62} C_{1} = 62$
$∴$ Required probability = $\frac{20}{62} = \frac{10}{31}$

Suggest Corrections

Similar questions

[Pb. CET 2004]

B_{1}, B_{2}, B_{3}, B_{4}

B_{2}

A class contains 60 boys and 40 girls. A student is selected at random and what is the probability of that selected student is a girl?

Join BYJU'S Learning Program