Teaching REET Mock Test Series 2024-25 Level 1 & 2 (Hindi-Sanskrit-English) Quantitative Aptitude Probability
A bag contains 5 red balls and some blue balls. If the probability of drawing a blue ball from the bag is four times that of a red ball, then the number of blue balls in the bag is
1
10
2
40
3
20
4
15
5
Question Not Attempted