Math, asked by nitin7661, 1 year ago

4. the mean age of 30 students is 9 years .if the age of teacher is included then
mean becomes 10 years.what is the age of teacher?

Answers

Answered by hasrh40

2

40 yrs is the answer of this question. solution is given above

Attachments:

Previous Question

Next Question

Similar questions

Chemistry, 6 months ago

what chemical changes take place,if any when i) chlorine is bubbled into an aqueous solution of Sodium astatide. ii) astatine is added into aqueous solution of potassium iodide.

Math, 6 months ago

one side of parallelogram is 65 degree find next three angles...

Biology, 6 months ago

be Genetical features of parental plants can retained by a) Cross - pollination by thybridization cself pollination Di regłative propagation...

Political Science, 1 year ago

give points to show that UN is non democratic somewhere...

Physics, 1 year ago

If the resistance of a conductor is half what will be the new current...

Math, 1 year ago

Please i need help. Imran travels a total distance of 180 km. He travels the first 100 km of his journey with an average speed of x km/hr. He travels the rest of his journey at an average speed of 5 km/hr less than the previous speed. a) Form an expression in terms of x for the time taken for the first 100km of his journey. b) If the total time taken for the journey is 2 hours and 30 minutes,...

Math, 1 year ago

Do the 27244 multiply by the smallest number that the product becomes the perfect cube, also known as the cuboid of product.

Math, 1 year ago

1/50ratio intpercentag...