Advertisements
Advertisements
प्रश्न
Find the value of x in each of the following proportions:
x : 92 : : 87 : 116
उत्तर
x : 92 : : 87 : 116
Product of extremes = Product of means
x × 116 = 92 × 87
⇒ 116x = 8004
⇒ x = `8004/116` = 69
APPEARS IN
संबंधित प्रश्न
If p, q and r in continued proportion, then prove the following:
(p2 - q2)(q2 + r2) = (q2 - r2)(p2 + q2)
Find the third proportional to:
`a/b + b/c, sqrt(a^2 + b^2)`.
Find the third proportional to 0.24, 0.6
Write (T) for true and (F) for false in case of the following:
32 kg : Rs 36 : : 8 kg : Rs 9
Show that the following numbers are in continued proportion:
16, 84, 441
In covering 111 km, a car consumes 6 L of petrol. How many kilometers will it go to 10 L of petrol?
If a, b, c and d are in proportion, prove that: (ma + nb) : b = (mc + nd) : d
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:
21 : 6 : : 35 : 10
If x, y and z are in continued proportion, Prove that:
`x/(y^2.z^2) + y/(z^2.x^2) + z/(x^2.y^2) = 1/x^3 + 1/y^3 + 1/z^3`
