The arithmetic mean of the marks scored by students of a class is 58. 20% of them secured a mean score of 60. The mean score of another 30% of the students was 40. The mean score of the remaining students is
The mean score in a test of the 12 boys in a class was 16 while the overall mean of the 30 students in the class was 18.1. What was the mean score of the girls?
Which of the following Indian women cricket openers scored 320 in 45.3 overs to become the world's first pair to achieve a 300-run opening wicket partnership in a one-day internationals(ODIs)?