Aptitude - Ratio and Proportion - Discussion
Discussion Forum : Ratio and Proportion - General Questions (Q.No. 8)
8.
If 0.75 : x :: 5 : 8, then x is equal to:
Answer: Option
Explanation:
(x x 5) = (0.75 x 8)  x = |
 |
6 |  |
= 1.20 |
| 5 |
Discussion:
28 comments Page 1 of 3.
Bharath said:
1 year ago
Here, Product of Extremes = Product of Means.
(4)
Shailendra yadav said:
2 years ago
0.75/x = 5/8
0.75*8 = 5x
6 = 5x
6/5 = x
X = 1.2 ans.
0.75*8 = 5x
6 = 5x
6/5 = x
X = 1.2 ans.
(21)
Peddamallu sanjeeva reddy said:
5 years ago
Good explanations, thanks all.
(2)
Abhi said:
5 years ago
Well explained. Thanks all.
(3)
Anitha said:
5 years ago
0.75 : x :: 5 : 8.
0.75/x = 5/8.
0.75 * 8/5 = x.
75*8/500 = x.
6/5 = x.
So, x = 1.2.
0.75/x = 5/8.
0.75 * 8/5 = x.
75*8/500 = x.
6/5 = x.
So, x = 1.2.
(18)
Dahiinii said:
5 years ago
Suhail
X * 5=0.75*8.
X = 0.75*8/5.
X = 6/5.
X * 5=0.75*8.
X = 0.75*8/5.
X = 6/5.
(1)
SUHAIL said:
5 years ago
Please explain the calculation of 6/5, how we got it? Explain it.
(2)
Bhumi said:
5 years ago
Here, In the problem given that 0.75:x::5:8,
So, it means 0.75:x=5:8.
Here, 0.75and 8 are called extremes and at the same time, x and5are called means.
For example, a:b::c:d.
Then the product of extremes(a*d)=the product of mean(b*c).
So that's why it came,
0.75*8=5x,
6=5x=6/5,
Therefore, x = 1.2(ans).
So, it means 0.75:x=5:8.
Here, 0.75and 8 are called extremes and at the same time, x and5are called means.
For example, a:b::c:d.
Then the product of extremes(a*d)=the product of mean(b*c).
So that's why it came,
0.75*8=5x,
6=5x=6/5,
Therefore, x = 1.2(ans).
(9)
Rahul said:
5 years ago
5x = 0.75*8,
5x = 6.00,
x = 6.00/5,
x = 1.2.
5x = 6.00,
x = 6.00/5,
x = 1.2.
Durgesh khismatrao said:
6 years ago
a/b = c/d.
0.75/x = 5/8.
(0.75 * 8)/5 =x,
6/5= x.
1.2 =x.
0.75/x = 5/8.
(0.75 * 8)/5 =x,
6/5= x.
1.2 =x.
(2)
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