The mean of $x + 3, x + 5, x + 7, x + 9$ and $x + 11$ is

2 x + 7

No worries! We‘ve got your back. Try BYJU‘S free classes today!

x + 8

No worries! We‘ve got your back. Try BYJU‘S free classes today!

x + 7

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

None of these

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is D $x + 7$
The observations are : $x + 3, x + 5, x + 7, x + 9, x + 11$
Mean = $\frac{s u m}{n u m b e r o f o b s e r v a t i o n s}$ = $\frac{x + 3, x + 5, x + 7, x + 9, x + 11}{5}$ = $\frac{5 x + 35}{5} = x + 7$

Suggest Corrections

Similar questions

x + 3, x + 5, x + 7, x + 9

x + 11

Question 77

Solve the following:

3(5x-7)+2(9x-11)=4(8x-7)-111

- 7 x y^{2}, 8 x^{2}, 9 x^{3}, - 100 x, - 11 y x, 20 y^{2} x, 96 x, - 7 x^{2}, 67 x y, 7 x^{4}, 3 x^{2}, - 11 x^{2} y

x^{15} - x^{13} + x^{11} - x^{9} + x^{7} - x^{5} + x^{3} - x = 7

Solve the following:

(i) x + 3 = 11; (ii) y − 9 = 21; (iii) 10 = z + 3; (iv) ; (v) 10x = 30; (vi) ;

(vii) ; (viii) ; (ix) 8x − 8 = 48; (x) ; (xi) ; (xii) ;

(xiii) 3 (x + 6) = 24; (xiv) ; (xv) 3(x + 2) − 2(x − 1) = 7.

Join BYJU'S Learning Program