Advertisements
Advertisements
प्रश्न
Find the mean proportion of: 8.1 and 2.5
Advertisements
उत्तर
Let the x be the mean proportion of 8.1 and 2.5
∴ 8.1 : x : : x : 2.5
∴ x2 = 8.1 x 2.5
∴ x = `sqrt(8.1 xx 2.5)`
= `sqrt(20.25)`
= 4.5.
APPEARS IN
संबंधित प्रश्न
Find two numbers such that the mean proportional between them is 14 and third proportional to them is 112.
Given, `x/(b - c ) = y/(c - a ) = z/(a - b)` , Prove that
ax+ by + cz = 0
If a, b, c, d are in continued proportion, prove that:
(a2 + b2 + c2) (b2 + c2 + d2) = (ab + bc + cd)2.
Write (T) for true and (F) for false in case of the following:
81 kg : 45 kg : : 18 men : 10 men
Write (T) for true and (F) for false in case of the following:
32 kg : Rs 36 : : 8 kg : Rs 9
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?
5 : `square` : : 10 : 8 : : 15 : `square`
Bachhu Manjhi earns Rs. 24000 in 8 months. At this rate, how much does he earn in one year?
Write True (T) or False (F) against the following statement:
5.2 : 3.9 : : 3 : 4
If `(a + b)^3/(a - b)^3 = 64/27`
- Find `(a + b)/(a - b)`
- Hence using properties of proportion, find a : b.
