Advertisements
Advertisements
प्रश्न
Find the value of the unknown in the following proportion :
c
Advertisements
उत्तर
`"a" : 9/2 :: 7/2 : 11/2`
⇒ `"a" xx 11/2 = 9/2 xx 7/2`
⇒ `"a" = 9/2 xx 7/2 xx 2/11`
⇒ `"a" = 63/22`
a = `63/22`
APPEARS IN
संबंधित प्रश्न
If q is the mean proportional between p and r, show that: pqr(p + q + r)3 = (pq + qr + rp)3.
If `x = (sqrt(a + 3b) + sqrt(a - 3b))/(sqrt(a + 3b) - sqrt(a - 3b))`, prove that: 3bx2 – 2ax + 3b = 0.
Find the mean proportional to (x – y) and (x3 – x2y).
If a, b and c are in continued proportion, prove that: a: c = (a2 + b2) : (b2 + c2)
Write (T) for true and (F) for false in case of the following:
30 bags : 18 bags : : Rs 450 : Rs 270
The ratio 92 : 115 in its simplest for is
The angles of a triangle are in the ratio 3 : 1 : 2. The measure of the largest angle is
If a, b, c are in continued proportion, prove that: `(pa^2+ qab+ rb^2)/(pb^2+qbc+rc^2) = a/c`
If a, b, c are in continued proportion, prove that: a : c = (a2 + b2) : (b2 + c2)
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
