Question

find the value of n if these are in proportion
a 5:6=n:18
b 1:8=7:n

Answer 1

Step-by-step explanation:

a) 5:6 = n:18

$\frac{5}{6} = \frac{n}{18}$

$\frac{5 \times 18}{6} = n$

therefore, n=15

b) 1:8=7:n

$\frac{1}{8} = \frac{7}{n}$

n=7×8

therefore, n=56

Answer 2

Answer:

a) n=15

b) n =56

Step-by-step explanation:

As per a) 5/6=n/18  => 5*18/6 =n  or 5*3 = n (as 6*3 =18)

n=15

As per b) 1/8= 7/n =>

1*n =7*8

n=56