Advertisements
Advertisements
प्रश्न
Find the value of the unknown in the following proportion :
3 : 4 : : p : 12
Advertisements
उत्तर
3 : 4 : : p : 12
⇒ 3 x 12 = 4 x p
⇒ p = `(3 xx 12)/4`
⇒ p = 9
p = 9
APPEARS IN
संबंधित प्रश्न
What least number must be added to each of the numbers 6, 15, 20 and 43 to make them proportional?
If y is the mean proportional between x and z; show that xy + yz is the mean proportional between x2 + y2 and y2 + z2.
If `a/b = c/d` prove that each of the given ratios is equal to
`(5a + 4c)/(5b + 4d)`
Find the fourth proportional to 2xy, x2 and y2.
If y is the mean proportional between x and z, show that :
xyz (x+y+z)3 =(xy+yz+xz)3
Show that the following numbers are in continued proportion:
48, 60, 75
If `a/c = c/d = c/f` prove that : `(a^2)/(b^2) + (c^2)/(d^2) + (e^2)/(f^2) = "ac"/"bd" + "ce"/"df" + "ae"/"df"`
Write True (T) or False (F) against the following statement:
0.9 : 0.36 : : 10 : 4
Are the following statements true?
7.5 litres : 15 litres = 5 kg : 10 kg
If x : y = y : z, then x2 : y2 is ______.
