If `(3)/(5)A=(7)/(2)B=(7)/(5)C` then find the ratio between `A, B` and `C`

If a=7,b=3,c=5 then find A

If 7A=5B=2C then find A:B:C

If A = [(7,8),(1,9)] and B = [(7,12),(5,1)] , find the matrix C such that 3 A + 5 B + 2 C is a null matrix.

If a: b = (2)/(9) : (1)/(3) , b: c = (2)/(7) : (5)/(14) and d : c = ( 7)/(10) : (3)/(5) , then find a : b: c: d .

If A(6,3),B(-3,5),C(4,-2) and P(a,b) then the ratio of the areas of the triangles PBC,ABC is |a+b|:7 |a-b|:7 |a+b+2|:7 |a+b-2|:7

If A(6,3),B(-3,5),C(4,-2) and P(a,b) then the ratio of the areas of the triangles PBC,ABC is |a+b|=7 |a-b|=7 |a+b+2|=7 |a+b-2|=7

If a:b=(2)/(9):(1)/(3),b:c=(2)/(7):(5)/(14) and d:c=(7)/(10):(3)/(5), then find a:b:c:d