Three quarters of a number added to two and a half number gives 13. Find the missing number

if x : y = 3 : 2 and y :  z = 5 : 4, find the value of x in the ratio x: y: z

If $x+y=2y-x+1=5$ , find the value of x

if $x+0.4y=3$ and $y=\tfrac{1}{2}x$ find the value of $(x+y)$

If N112.00 exchange for D14.95, calculate the value of D1.00 in Naira

In a quiz competition, a student answers n question correctly and was given D(n + 50) for each question correctly answered. If he gets D600.00 altogether. How many question did he answer correctly?

The sum of 2 consecutive whole numbers is $\tfrac{5}{6}$ of their product. Find the numbers

Halima is n years old. Her brother’s age is 5 years more half of her age. How old is her brother?

Given that x = 2 and $y=-\frac{1}{4}$, evaluate $\frac{{{x}^{2}}y-2xy}{5}$

$\begin{align}  &\text {Find the LCM of} \\  & {{2}^{3}}\times 3\times {{5}^{2}} \\ & 2\times {{3}^{2}}\times 5 \\ & {{2}^{2}}\times {{3}^{3}}\times 5 \\\end{align}$

If $2x+y=10$ and $y\ne 0$ which of the following is not a possible value of x

Tom will be 25 years old in n years time. If he is 5 years younger than Bade, Find Bade’s present age.