The mean of ten positive numbers is 16. When another number is added, the mean becomes 18. Find the eleventh number

Similar Questions

If a rod 10cm in length was measured as 10.5cm, calculate the percentage error ...

Bello buys an old bicycle for ₦9,200.00 and spends ₦1,500.00 on its repairs. If he sells the bic...

If x =3, y = 2 and z = 4 what is the value of \(3x^{2}-2y+z\)...

Evaluate: \(\frac{0.42 \div 2.5}{0.5 \times 2.95}\), leaving the answer in the standard form....

The area of a trapezium is 200 cm\(^2\). Its parallel sides are in the ratio 2 : 3 and the perpendic...

if tanθ = \(frac{3}{4}\), 180° < θ < 270°, find the value of cosθ....

The variance of a given distribution is 25. What is the standard deviation? ...

The bearing of a point P from another point Q is 310o. If |PQ| = 200m, how far west of Q is P?...

The graph above shows the cumulative frequency curve of the distribution of marks in a class test. W...

If \(8^{x+1}=\frac{1}{4}\), find x...