Advertisements
Advertisements
Question
If 4 : 5 : : x : 35, then the value of x is
Options
42
32
28
none of these
Solution
28
4 : 5 :: x : 35
⇒ `4/5=x/35`
⇒ x = `(4 × 35)/5` = 4 × 7 = 28
APPEARS IN
RELATED QUESTIONS
Using the properties of proportion, solve for x, given `(x^4 + 1)/(2x^2) = 17/8`.
Find the third proportional to `2 2/3` and 4
Find two numbers such that the mean proportional between them is 12 and the third proportional to them is 96.
The following numbers, K + 3, K + 2, 3K – 7 and 2K – 3 are in proportion. Find K.
Find two nurnbers whose mean proportional is 12 and the third proportional is 324.
If a : b : : c : d, then prove that
2a+7b : 2a-7b = 2c+7d : 2c-7d
What number must be added to each of the numbers 5, 11, 19 and 37 so that they are in proportion?
Determine if the following numbers are in proportion:
7, 42, 13, 78
If Rs 760 is divided between A and B in the ratio 8 : 11, then B's share is
The table, given below, shows the values of x and y, where x is proportional (directly proportional) to y.
x | A | 24 | 15 |
y | 12 | B | 20 |
The values of A and B are: