Question

If the mean of 2x+3, 3x+4, x+7, x-3, 4x-5 is 10, find:

(a) ‘x’ and the numbers.

(b) the mode.

Answer 1

Answer:

b.............is the ans

Answer 2

(a) given,mean = 10

mean = sum of terms/no. of terms

(2x+3+3x+4+x+7+x-3+4x-5)/5=10

= (11x+6)/5=10

=11x+6=10*5

=11x+6=50

=11x=50-6

=11x=44

=x=4

and the no.s are 2*4+3=11

3*4+4=16

4+7=11

4-3=1

4x-5=11

so the no.are 11,16,11,1,11

(b) the mode is 11