Question

2. Find the value of x, if :
(i) 21:27 :: 3.5 : x
1
1 1
(ii) 3
.
+ X ::2
C2 :1
3
2. 4.
1
4 4
(iii) x:3 ::12:2 .
2 5 5
(iv) 0.16:x ::0.4:7​

Answer 1

Answer:

20.

Step-by-step explanation:

it is a good answer.

Answer 2

Answer:

$x = 4.5$

Step-by-step explanation:

$\frac{21}{27} = \frac{3.5}{x} \\ \\ \\ x = \frac{3.5 \times 27}{21} = \frac{0.5 \times 9}{1} \\ \\ x = 4.5$