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

Similar Questions

A book seller sells Mathematics and English books. If 30 customers buy Mathematics books, 20 custome...

A tax payer is allowed $\frac{1}{8}$th of his income tax-free, and pays 20% on the remainder. If h...

Find the number of sides of a regular polygon whose interior angle is twice the exterior angle. ...

Find $\frac{dy}{dx}$. If y = 3x3 + 2x2 + 3x + 1...

Which of the following statements is/are true when two straight lines intersect? I. Adjacent angles...

The sides of a right angle triangle in ascending order of magnitude are 8cm, (x-2)cm and x cm. Find ...

The graph of the function y = x$^2$ + 4 and a straight line PQ are drawn to solve the equation x\(...

Which of the following statement is not true about a rectangle? I.Each diagonal cuts the rectangl...

Evaluate $\sqrt{20}\times (\sqrt{5})^3$...

If $1P03{_4} = 115_{10}$ find P...