Question

If 30% of A = 25% of B = 20 % of C, then find the ratio A : B : C

Answer 1

Answer:10:12:15

Step-by-step explanation:30% of A=25% of B=20% of C

In questions such as these,we can directly cut the percentage from all of them since each expression carries one.

Then,

30 x A = 25 x B = 20 x C

i.e. 6 x A = 5 x B = 4 x C (Dividing by 5)

After reaching this step, take a common multiple for 6,5 and 4.

Lets say the common multiple is 60(divided by all three digits),we divide all three ratios with 60

i.e. 6A/60 : 5B/60 : 4C/60

= A/10 : B/12 : C/15

Hence the required ratios are 10:12:15