A bag contains 16 red balls and 20 blue balls only. How many white balls must be added to the bag so that the probability of randomly picking a red ball is equal to $\frac{2}{5}$

Similar Questions

To arrive on schedule, a train is to cover a distance of 60km at 72km/hr. If it starts 10 minutes la...

If $\sqrt{x^2 + 9}$ = x + 1, solve for x...

Calculate the value of Y in the diagram ...

In the diagram, ∠ABC and ∠BCD are right angles, ∠BAD = t and &a...

One angle of a rhombus is 60o. The shorter of the two diagonals is 8cm long. Find the length of the ...

The sum of the first n positive integers is ...

The factors of 6x - 5 - x2 are ...

Which of these values would make $\frac{3p^-}{p^{2-}}$ undefined? ...

Evaluate 2700 000 x 0.03 ÷ 18 000 ...

Integrate the expression 6x$^2$ - 2x + 1...