Advertisements
Advertisements
Question
Find the value of x in the following proportions : 3 : x = 24 : 2
Advertisements
Solution
3 : x = 24 : 2
⇒ × x 24 = 3 x 2
∴ x = `(3 xx 2)/(24)`
= `(1)/(4)`.
APPEARS IN
RELATED QUESTIONS
If q is the mean proportional between p and r, show that: pqr(p + q + r)3 = (pq + qr + rp)3.
If p + r = mq and `1/q + 1/s = m/r`; then prove that p : q = r : s.
If a/b = c/d prove that each of the given ratio is equal to `sqrt((3a^2 - 10c^2)/(3b^2 - 10d^2))`
Find the fourth proportional to 2xy, x2 and y2.
Find the mean proportion of the following :
`28/3` and `175/27`
Find the two numbers such that their mean proprtional is 24 and the third proportinal is 1,536.
35 inland letters cost Rs 87.50. How many such letters can we buy for 315?
If 24 workers can build a wall in 15 days, how many days will 8 workers take to build a similar wall?
If 40 men can finish a piece of work in 26 days, how many men will be required to finish it in 20 days?
A student said that the ratios `3/4` and `9/16` were proportional. What error did the student make?
