Question

please help me to solve this question ​

Answer 1

Answer:

Step-by-step explanation:

→ A:B=2:3 ________(i)

→ B:C=4:5 ________(ii)

→ C:D=5:8 ________(iii)

Let in eq.(i)

→ A=2x and B=3x

Now, multiplying by 4 in eq.(i)

→ A=8x and B=12x

And, multiplying by 3 in eq.(ii)

→ B=12x and C=15x

→ So, A:B:C=8x:12x:15x

Again, multiplying by 3 in eq.(iii)

→ C=15x and D=24x

Therefore,

→ A:B:C:D=8x:12x:15x:24x

→ A:B:C:D=8:12:15:24

Thus, A:D=16:24

A:D=4/6

A:D=2/3

Answer 2

Answer:

Step-by-step explanation:

A:B=2:3                 B:C=4:5                     C:D=5:8

A/B=2/3                  B/C=4/5                    C/D=5/8

A=(2/3)B                  B=(4/5)C                C= (5/8)D

A:D=A/D

$\frac{\frac{2}{3} B}{D} = \frac{2B}{3D} =\frac{2*\frac{4}{5} C}{3D} =\frac{8C}{15D} =\frac{8*\frac{5}{8}D}{15D} =\frac{5D}{15D} =\frac{5}{15} =\frac{1}{3}$