Question

14. The mean weight of a class of 34 students is 46,5 kg. if the weight of
the teacher is included, the mean rises by 500g. Find the weight of the
teacher.​

Answer 1

Answer:

64 kg

Step-by-step explanation:

34 students weight is 46.5 kg.

So, total weight of all students = 34 ×46.5 = 1581 kg

Now teacher included. So, number of persons will raise as 35. Weight increased by 500 g. So, the mean weight is 47 kg (46.5 kg + 500g)

Now overall weight = 35 × 47 = 1645 kg.

The difference between the two weights = 1645 - 1581 = 64

So, the new teacher weight is 64 kg.

Answer 2

Step-by-step explanation:

Coordinate geometry is one of the most interesting and important topics of the mathematics syllabus of JEE Advanced and JEE Main. It is one of the easiest and most scoring topic of JEE mathematics.