Question

. If 25 % of B = 30 % of C, then C : B​

Answer 1

Given=30/100A=40/100B=50/100C

Since all the denominators are same even we can write it as

30A=40B=50C

Even simply 3A=4B=5C

To solve this, convert A and C in terms of B

That is 3A =4B, then A=4B/3

Same way 5C=4B, C=4B/5

Now A isto B isto C is

4B/3 isto B isto 4B/5

Taking LCM of 3 and 5 and it is 15

Then it becomes

20B is to 15B is to 12B

Hence A is to B is to C is

20 is to 15 is to 12

This is answer

Answer 2

Step-by-step explanation:

25% of B= 25/100×B=B/4

30% of C=30/100×C=3C/10

B/4=3C/10

=>10B=12C

=>C/B=10/12=5/6

C:B=5:6