AFCAT || Numerical Ability || Average

A batsman makes a score of 67 in the 19th inning and thus increases his average by 2. Find his average after 19th inning.

Out of 250 observation, the first 150 observations have mean 5 and the average of the remaining 100 observations is15/2. What is the average of the whole group of observations?

The average marks obtained by the students in a Class are 43. If the average marks obtained by all 25 boys are 40 and the average marks obtained by the girl students are 48, then what is the number of girl students in the class?

In a family of husband, wife and their son, the average monthly incomes of husband and wife is Rs. 15600, that of father and son is Rs. 14000 and that of mother and son is Rs. 14400. What is the monthly income of son?

Find average of first 50 odd numbers.

The average height of 45 students of a class is 120 cm. If 5 among them whose average height is 125cm left the class and 10 new boys of average height 130 cm are included in the class, then what will be the new average height of the students of the class?

In Ashish's opinion, his weight is greater than 55 kg but less than 62 kg. His sister's view is that his weight can't be greater than 58 kg. His father also does not agree with Ashish and he thinks that Ashish's weight is greater than 50 kg but less than 60 kg. If all of them are correct in their estimation, what is the average of different probable weights of Ashish?

What will be the average of all the numbers between 11 and 99 that is divided by 9:

30 persons went to a hotel for a party. 25 of them spent Rs. 75 each on their dinner and the rest spent Rs. 2 more than the average expenditure of all the 30 . What was the total money spent by them.

The average weight of students in a class is 35 kg. Four new students are admitted to the class whose weights are 65 kg, 75 .5 kg, 68 .5 kg and 56 kg respectively. Now the average weight of the students of the class is 40 kg. The number of students in the beginning was