Advertisements
Advertisements
प्रश्न
Find the value of x in the following proportions : 10 : 35 = x : 42
Advertisements
उत्तर
10 : 35 = x : 42
⇒ 35 × x = 10 × 42
∴ x = `(10 xx 42)/(35)`
= 2 x 6
= 12.
APPEARS IN
संबंधित प्रश्न
If p + r = mq and `1/q + 1/s = m/r`; then prove that p : q = r : s.
Find the value of the unknown in the following proportion :
3 : 4 : : p : 12
Given four quantities p, q, r and s are in proportion, show that
q2(p - r) : rs (q - s) =(p2- q2- pq): ( r2-s2-rs).
If `a/b = c/d = e/f`, prove that `(ab + cd + ef)^2 = (a^2 + c^2 + e^2) (b^2 + d^2 + f^2)`.
What number should be subtracted from each of the numbers 23, 30, 57 and 78 so that the remainders are in proportion ?
Determine if the following numbers are in proportion:
150, 200, 250, 300
If x, y, z are in continued proportion, prove that: `(x + y)^2/(y + z)^2 = x/z`.
A particular high school has 1500 students 50 teachers and 5 administrators. If the school grows to 1800 students and the ratios are maintained, then find the number of teachers and administrators
Determine if the following are in proportion.
15, 45, 40, 120
In the proportional statement p : q :: r : s, which pair of terms represents the means, and which pair represents the extremes?
