Question

9. Which set of ratios below is NOT equivalent

to 3:4?
the
bu
A. 6 to 9,
q
12
B.) 9 to 12, 20
15

Answer 1

A

Step-by-step explanation: {reduction}

{
`(2X3)/(3X3)=(2)/(3)`} {
`(3X3)/(3X4)=(3)/(4)`}

A. 6 to 9 7'5
`(6)/(9)=(2)/(3) , (9)/(12)=(3)/(4)`

{
`(3X3)/(3X4)=(3)/(4)`}

B. 9 to 12 7'5
`(9)/(12)=(3)/(4) , (15)/(20)=(3X5)/(4X5)=(3)/(4)`

C.
`(15)/(20)=(3)/(4) ,` 24 = 32 = 3 × 8: 4 ×8 = 3 = 4

D.
`(30)/(40)=(3X10)/(4X10)=(3)/(4) , 18:24=3X6=4X6=3:4`

choose A