If $3p=4q$ and $9p=8q-12$ find the value of pq

If m : n = 2 : 1, evaluate $\frac{3{{m}^{2}}-2{{n}^{2}}}{{{m}^{2}}+mn}$

If  $x:y=\tfrac{1}{4}:\tfrac{3}{8}$and $y:z=\tfrac{1}{3}:\tfrac{4}{9}$, find x : z

If x : y : z  = 2: 3: 4, evaluate $\frac{9x+3y}{6z-2y}$

A sum of N18, 100.00 was shared among 5 boys and 4 girls, with each boy taking N20.00 more than each girl. Find a boy’s share

The ages of Tunde and Ola are in the ratio 1:2. If the ratio of Ola’s age to Musa is 4:5, what is the ratio of Tunde’s ag to Musa’s age?

A seller allows 20% discount for cash payment on a marked price of his goods. What is the ratio of the cash payment to the marked price

If the ratio  x : y = 3 : 5 and y : z = 4 : 7, find the ratio x: y : z

N140.00 is shared between Abu, Kayode  and Uche. Abu has twice as much as kayoed and Kayode as twice as much as Uche. What is kayode’s share?

In 1995, enrollments of two schools X and Y were 1,050 and 1,190 respectively. Find the ratio of the enrolment of X to Y