Advertisements
Advertisements
प्रश्न
Find the mean proportion of the following :
`28/3` and `175/27`
Advertisements
उत्तर
Let x be the mean proportion
`28/3 : "x" : : "x" : 175/27 `
`=> "x" xx "x" = 28/3 xx 175/27`
`=> "x"^2 = 4900/81`
`=> "x" = sqrt(4900/81)`
`=> "x" = 70/9`
The mean proportion is `70/9`
APPEARS IN
संबंधित प्रश्न
Find mean proportional of `( x + y)/( x - y), (x^2 - y^2)/(x^2y^2)`
Find the fourth proportional to `(1)/(3), (1)/(4), (1)/(5)`
Find the third proportional to `5(1)/(4) and 7.`
Write (T) for true and (F) for false in case of the following:
81 kg : 45 kg : : 18 men : 10 men
The cost of 4 dozen bananas is Rs 104. How many bananas can be purchased for Rs 6.50?
If b is the mean proportional between a and c, prove that a, c, a² + b², and b² + c² are proportional.
If `x/a = y/b = z/c`, prove that `"ax - by"/((a + b)(x- y)) + "by - cz"/((b + c)(y - z)) + "cz - ax"/((c + a)(z - x)` = 3
Find whether 12, 24, 18, 36 are in order that can be expressed as two ratios that are in proportion
Sleeping time of a python in a 24 hour clock is represented by the shaded portion in the following figure.
The ratio of sleeping time to awaking time is ______.
Are the following statements true?
45 km : 60 km = 12 hours : 15 hours
