Advertisements
Advertisements
प्रश्न
Find the mean proportion of the following :
0.09 and 0.25
Advertisements
उत्तर
Let x be the mean proportion
0.09 : x : : x : 0.25
⇒ x × x = 0.09 × 0.25
⇒ x2 = 0.0225
⇒ x = `sqrt 0.0225`
⇒ x = 0.15
The mean prooortion is 0.15
APPEARS IN
संबंधित प्रश्न
If b is the mean proportion between a and c, show that: `(a^4 + a^2b^2 + b^4)/(b^4 + b^2c^2 + c^4) = a^2/c^2`.
If (a2 + b2)(x2 + y2) = (ax + by)2; prove that: `a/x = b/y`.
Find the value of the unknown in the following proportion :
5 : 12 :: 15 : x
If y is the mean proportional between x and z, show that :
xyz (x+y+z)3 =(xy+yz+xz)3
Find the third proportional to Rs. 3, Rs. 12
Which of the following ratios are in proportion?
Find the missing number in the box in the proportion:
`square/45 = 16/40 = 24/square`
Bachhu Manjhi earns Rs. 24000 in 8 months. At this rate, in how many months does he earn Rs. 42000?
If 2x, 9 and 18 are in continued proportion, the value of x is ______.
What is the term "d" called in the expression a : b :: c : d?
