The ages in years of 10 teachers of a school are: 32, 41, 28, 54, 35, 26, 23, 33, 38, 40
(i) What is the age of the oldest teacher and that of the youngest teacher?
(ii) What is the range of the ages of the teachers?
(iii) What is the mean age of these teachers?

The following are the ages (in years) of 12 teachers in a school : 36, 44, 39, 46, 35, 53, 38, 42, 55, 45, 49, 40 Arrange the above data in an ascending order and answer the questions given below: What is the range of the ages of the teachers in the school?

The following are the ages (in years) of 12 teachers in a school : 36, 44, 39, 46, 35, 53, 38, 42, 55, 45, 49, 40 Arrange the above data in an ascending order and answer the questions given below: What is the mean age of the teachers in the school?

The following are the ages (in years) of 12 teachers in a school : 36, 44, 39, 46, 35, 53, 38, 42, 55, 45, 49, 40 Arrange the above data in an ascending order and answer the questions given below: What is the age of the youngest teacher in the school?

The following are the ages (in years) of 12 teachers in a school : 36, 44, 39, 46, 35, 53, 38, 42, 55, 45, 49, 40 Arrange the above data in an ascending order and answer the questions given below: What is the age of the eldest teacher in the school?

The mean ago of 25 teachers in a schools is 40 years. A teacher retires at the age of 60 years and a new teacher is appointed in his place . If now the mean age of the teachers in this schools is 39 years, then the age (in years) of the newly appointed teacher is

Study the bar graph representing the number of persons in various age groups in a town shown in Figure. Observe the bar graph and answer the following questions: (i)What is the percentage of the youngest age-group persons over those in the oldest age group? (ii)What is the total population of the town? (iii)What is the number of persons in the age group 60-65? (iv)What is the age-group of exactly 1200 persons living in the town? (v)What is the total number of persons living in the town in the age group 50-55? (vi)What is the total number of persons living in the town in the age group 10-15 and 60-65?

Baichung’s father is 26 years younger than Baichung’s grandfather and 29 years older than Baichung. The sum of the ages of all the three is 135 years. What is the age of each one of them?

When asked his age, the algebra teacher said, " if you square my age, then subtract 23 times my age, the result is 50." How old is he?

Answer the following:(a) Take Sarita’s present age to be y years(i) What will be her age 5 years from now?(ii) What was her age 3 years back?(iii) Sarita’s grandfather is 6 times her age. What is the age of her grandfather?(iv) Grandmother is 2 years younger than grandfather. What is grandmother's age?(v) Sarita’s father’s age is 5 years more than 3 times Sarita’s age. What isher father's age?

Study the bar graph representing the number of persons in various age groups in a town shown in Figure. Observe the bar graph and answer the following questions: What is the percentage of the youngest age-group persons over those in the oldest age group? What is the total population of the town? What is the number of persons in the age-group 60-65? How many persons are more in the age-group 10-15 then in the age group 30-35? What is the age-group of exactly 1200 persons living in the town? What is the total number of persons living in the town in the age-group 50-55? What is the total number of persons living in the town in the age-groups 10-15 and 60-65? Whether the population in general increases, decreases or remains constant with the increase in the age-group.