Question

hey guys!
This is a question of maths,Topic:Ratio
a) Find the value of a if a:400=6:25.
b) Given that 5b:8=2:5,find the value of b.
I hope it will built up your interest.

Answer 1

Step-by-step explanation:

a.

$\frac{a}{400} = \frac{6}{25}$

Therefore,

$25a =400 \times 6 = 2400$

$a = 2400 \div 25 = 96$

b.

$\frac{5b}{8} = \frac{2}{5}$

$5b \times 5 = 8 \times 2$

$25b = 16 \\ thereforeb = \frac{16}{25}$