Advertisements
Advertisements
प्रश्न
Choose the correct answer from the given options :
The mean proportional between `(1)/(2)` and 128 is
विकल्प
64
32
16
8
Advertisements
उत्तर
The mean proportional between `(1)/(2)` and 128 is
= `sqrt(1/2 xx 128)`
= `sqrt(64)`
= 8
APPEARS IN
संबंधित प्रश्न
If `(4m + 3n)/(4m - 3n) = 7/4`, use properties of proportion to find `(2m^2 - 11n^2)/(2m^2 + 11n^2)`
If a, b, c, d are in continued proportion, prove that:
`sqrt(ab) - sqrt(bc) + sqrt(cd) = sqrt((a - b + c) (b - c + d)`
If `x/a = y/b = z/c`, show that `x^3/a^3 - y^3/b^3 = z^3/c^3 = (xyz)/(zbc).`
If 15 tins of the same size contain 234 kg of oil, how much oil will there be in 10 such tins?
If 12 L of diesel is consumed by a car in covering a distance of 222 km, how many kilometers will it go in 22 L of diesel?
Choose the correct statement:
If a, b, c and d are in proportion, prove that: `(a^2 + ab)/(c^2 + cd) = (b^2 - 2ab)/(d^2 - 2cd)`
If a, b, c, d are in continued proportion, prove that: `((a - b)/c + (a - c)/b)^2 - ((d - b)/c + (d - c)/b)^2 = (a - d)^2 (1/c^2 - 1/b^2)`.
Write the mean and extreme terms in the following ratios and check whether they are in proportion.
78 litre is to 130 litre and 12 bottles is to 20 bottles
Determine if the following are in proportion.
32, 48, 70, 210
