Question

1.Sum of ages of students in a class is 384. When the teacher of age 45 is with students the average of age is increased by 1.'

a. If number of students is x, what is the average age of students

b. When the teacher is added, what will be the average age?

c. Howmany students are there in the class.

2.One's place of a two digit number is 3. Product of this two digit number and sum of its digits is 115.

a. If ten's place is x, write the two digit number using x.

b. Find the number using a second degree equation.​

Answer 1

Answer:

2. 2x is the answer but I am not sure