Question

in a school total number of students in 10 a division is equal to the number of 10 B division. one student is to be selected from each divisions. no of 10 A boys=20.The probability of a selecting boy from 10 A is 2/5and that from 10B is 3/5
a) How many students are in there 10A​

Answer 1

Answer:

                                                                                                                                                                                                                                                                                                                                                                                                         

Step-by-step explanation:

Answer 2

Answer:

a)50

b)30/50

c)30

d)20*30/50*50