Question

(2x5=10)
Express the ratio 81:36 in the simplest form.
Find the value of y, 0.9:0.6::y:3​

Answer 1

Answer:

Express the ratio 81:36 in the simplest form.

= $\cancel{81}{:}\cancel{36}$

= 9:4

‎ ‎

Find the value of y, 0.9:0.6::y:3

Product of mean = product of extreme

$= 0.9 \times 3 = y \times 0.6 \\ \\ = y = \frac{9 \times 3 \times 10}{6 \times 10} \\ \\ y = \frac{3 \times 3}{2} \\ \\ y = \frac{9}{2} \\ \\ y = 4.5$