Practice Average – The average of 11 observations is 60. If the average of first five observations is 58 and that of the last five is 56, then the sixth observation is :
Practice Average – Three years ago the average of A and B was 18 Years. With C joining them now, the average becomes 22 years. How old is C now?
Practice Average – The average age of 40 students of a class is 15 years. When 10 new students are admitted, the average is increased by 0.2 years. The average age of new students is :
Practice Average – The average of a non-zero number and its square is 5 times the number. The number is:
Practice Average – The average of 5 consecutive numbers is n. If the next two numbers are also included, the average will:
Practice Average – The total population of a village is 5000. The number of males and females increases by 10% and 15% respectively and consequently the population of the village becomes 5600. what was the number of males in the village ?
Practice Average – The average age of 30 students is 9 years. If the age of their teacher is included, it becomes 10 years. The age of the teacher (in years) is :
Practice Average – Of the three numbers, second is twice the first and is also thrice the third. If the average of the three numbers is 44, the largest number is :
Practice Average – The average weight of 9 mangoes increases by 20 g if one of them weighing 120 g is replaced by another. The weight of the new mango is :
Practice Average – The average weight of 8 men is increased by 1.5 kg when one of the men who weighs 65 kg is replaced by a new man. The weight of the new man is :
Practice Average – The average age of a committee of eight members is 40 years. A member, aged 55 years retired and his place was taken by another member aged 39 years. The average age of the present committee is :
Practice Average – The average of six numbers is 30.If the average of first four is 25 and that of last three is 35, the fourth number is :
Practice Average – Out of four numbers ,the average of first three is 16 and that of the last three is 15 .If the last number is 18,the first number is :
Practice Average – The average of 11 numbers is 50. If the average of first 6 numbers is 49 and that of last 6 is 52.Find the 6th number.
Practice Average – Two-third of one-seventh of a number is 87.5% of 240. Whar is the number?