Question

Two lengths are in the ratio 7:8. If the first length is 490cm, what amount is the second length?

Answer 1

Answer:

second length be 560 cm....

Answer 2

Answer:

The second length = 560 cm

Step-by-step explanation:

According to the problem:

$\frac{First Length}{Second Length} = \frac{7}{8}$

∴ 7 times the second length = 8 times the first length  [by cross multiplication]

∴ the second length = $\frac{8}{7}$ x 490 cm = 8 x 70 cm = 560 cm