The mean monthly salary of 8 teachers is ₹ 32,000. When the salary of one senior teacher is included their mean becomes ₹ 33,500. Find the salary of the senior teacher.

The mean salary of 20 workers is Rs 12,500. If the salary of office superintendent is added, the mean will increase by Rs 250. Find the salary of the office superintendent.

The mean salary of 20 workers is Rs 10,250, If the salary of office superintendent is added, the mean will increase by Rs 750. Find the salary of the office superintendent.

The mean salary of 20 workers is Rs. 10,250. If the salary of office superintendent is added,the mean will increase by Rs. 750. Find the salary of the office superintendent.

The average age of 30 boys of a class is equal to 14 yrs. When the age of the class teacher is included the average becomes 15 yrs. Find the age of the class teacher.

The mean weight of a class of 35 student is 45 kg. if the weight of the teacher be included, the mean weight increases by 500g. Find the weight of the teacher.

The mean monthly salary paid to 75 workers in a factory is Rs 5680. The mean salary of 25 of them is Rs 5400 and that of 30 others is Rs 5700. The mean salary of the remaining workers is (a) Rs 5000 (b) Rs 6000 (c) Rs 7000 (d) Rs 8000

The monthly salary of Dinesh is 250,000 .In next month,his salary will be increased by 10% .Find his new salary.

The mean weight of 34 students of a school is 42kg . If the weight of the teacher be included , the mean rises by 400 g. find the weight (in kg) of the teacher.