In Geeta's opinion, her weight is greater than 55 kg but less than 62 kg. Geeta's mother does not agree with Geeta and she thinks that Geeta's weight is greater than 50 kg but less than 60 kg. Her brother's view is that her weight can't be greater than 58 kg. If all of them are correct in their estimation, what is the average of different probable weights of Geeta?

Mean marks of 50 students were found to be 78.4. But later it was detected that 95 was misread as 59 and 25 was misread as 52. What is the difference between correct mean and incorréct mean ?

Ramesh scores in five math tests are 89, 75, 78, 84 and 83. What does he need to score in the next test for his final average in all the tests to be at least 82?

The captain of a cricket team of 11 members is 26 years old, and the wicket-keeper is three years older than the captain. If the ages of captain and wicketkeeper are excluded, the average age of the…

Section A has 25 students with an average score of 76. Section B has 35 students with an average score of 64. The combined average score of all students is :

Consider the following table in respect of students of 4 schools who appeared in a test: School I (60 students, avg 60), School II (50 students, avg 80), School III (50 students, avg 40), School IV (…