Advertisements
Advertisements
प्रश्न
Do the ratios 15 cm to 2 m and 10 sec to 3 minutes form a proportion?
Advertisements
उत्तर १
15 cm : 2 m :: 10 sec : 3 min
15 cm : 2 × 100 cm :: 10 sec : 30 × 60 sec
15 : 200 :: 10 : 1800
3 : 40 :: 1 : 180
No, they donot form a proportion
उत्तर २
Ratio of 15 cm to 2 m = 15: 2 × 100 (1 m = 100 cm)
= 3: 40
Ratio of 10 sec to 3 min = 10: 3 × 60 (1 min = 60 sec)
=1: 18
Since, 3: 40 ≠ 1: 18, therefore, the given ratios do not form a proportion.
APPEARS IN
संबंधित प्रश्न
Find the fourth proportion to the following:
(p2q - qr2 ), (pqr - pr2 ) and (pq2 - pr2)
If a, b, c and dare in continued proportion, then prove that
(a+ d)(b+ c)-(a+ c)(b+ d)= (b-c)2
If q is the mean proportional between p and r, prove that
`p^2 - q^2 + r^2 = q^4[(1)/p^2 - (1)/q^2 + (1)/r^2]`.
Find the fourth proportional to 3, 12, 15
In an army camp, there were provisions for 550 men for 28 days. But, 700 men attended the camp. How long did the provisions last?
If y is mean proportional between x and z, prove that xyz (x + y + z)³ = (xy + yz + zx)³.
If `x/a = y/b = z/c`, prove that `[(a^2x^2 + b^2y^2 + c^2z^2)/(a^2x + b^3y +c^3z)]^3 = "xyz"/"abc"`
Find two numbers whose mean proportional is 16 and the third proportional is 128.
The mean proportion between `3 + 2sqrt(2)` and `3 - 2sqrt(2)` is ______.
In the proportional statement p : q :: r : s, which pair of terms represents the means, and which pair represents the extremes?
