Aptitude - Ratio and Proportion - Discussion

You can it can also be done in this way divide the fractions like 1/2 = .5, 2/3 = .66 3/4 = .75 so the ratio would be like .5 : .66 : .75 .

This can be also written as 50 : 66 : 75.

According to some rule when all ratios in the given are multiplied with same number or value, the ratio or proportion remains the same.

Now, we can find the value of the first => 50/ 191 * 782 = 204.

At first to take lcm 2:3:4 then the result is 12.

Then after multiplying 1st part 1/2 * 12 = 6.

After multiplying 2nd part is 2/3 * 12= 8.
After multiplying 3rd part is 3/4 * 12 = 9.

The result is 6 : 8 : 9 after the result add it (6 + 8 + 9) = 23.

According to question find the 1st Part.

1st part is 6 and the total number is 23.

ie, 782 * 6/23 = 204 is the correct answer.

How 6:8:9?

Since the ratio is 6:8:9 = 23.

So, first part = 6/23,

Second part = 8/23,

Third part = 9/23,

We have to find the first part therefore 6/23.

Hi, I didn't get how 6/23 came, so plz explain it once again.

Given:- Amount = Rs. 782.

Ratios = 1/2:2/3:3/4.

Add the given ratios = 1/2+2/3+3/4 = 23/12.

To find the first part = given amount * first part ratio/total value of the ratios.

= 782*[ (1/2) / (3/4) ].

Answer = 204.

Given 1/2, 2/3, 3/4.

The first part 1+2, 2+3, 3+4 (add).

3, 5, 7, the total : 15.

1/2*15 = 7.5.

2/3*15 = 10.

3/4*15 = 11.25.

This total : 28.75.

And 7.5/28.75*782 = 204.

We want first one so first one is 204.

So answer is 204.