Question

find the value of:
a) 27 : 15 :: 36 : x
b) 64 : 80 :: x : 5

plz answer the question with proper steps
best answer will be marked brainliest

Answer 1

27 : 15 = 36 : x

27x = 15 × 36

x = 540/27

x = 20ans

64 : 80 = x : 5

64 × 5 = 80x

320/80 = x

4 = x ans

Answer 2

a). x = 20 will be the answer

b). x = 5 will be the answer.

Step-by-step explanation:

We have to find the value of x for the given ratios.

a). 27 : 15 :: 36 : x

This can be written as $\frac{27}{15}=\frac{36}{x}$

By cross multiplication,

27x = 36 × 15

x = $\frac{36\times15}{27}$

x =20

b). 64 : 80 :: x : 5

As we have done in part (a) of the question we will rewrite the ratio as

$\frac{64}{80}=\frac{x}{5}$

x = $\frac{64\times 5}{80}$

x = 4

Learn more about the ratios from

https://brainly.in/question/6521680