Advertisements
Advertisements
Question
If b : a = c : d, then a, b, c, d are in proportion.
Options
True
False
Solution
Ths statement is False.
Explanation:
If b:a = c:d
⇒ `b/a = c/d`
If a, to, c and d are in proportion, then
`a/b = c/d`
= ad:bc
APPEARS IN
RELATED QUESTIONS
Find the mean proportional between a – b and a3 – a2b
If `x/a = y/b = z/c` prove that `(2x^3 - 3y^3 + 4z^3)/(2a^3 - 3b^3 + 4c^3) = ((2x - 3y + 4z)/(2a - 3b + 4c))^3`
Find the mean proportional to (x – y) and (x3 – x2y).
The following numbers, K + 3, K + 2, 3K – 7 and 2K – 3 are in proportion. Find K.
Find two nurnbers whose mean proportional is 12 and the third proportional is 324.
24 workers can build a wall in 15 days. How many days will 9 workers take to build a similar wall?
If `a/c = c/d = c/f` prove that : (b2 + d2 + f2) (a2 + c2 + e2) = (ab + cd + ef)2
If a, b, c are in continued proportion, prove that: `(1)/a^3 + (1)/b^3 + (1)/c^3 = a/(b^2c^2) + b/(c^2a^2) + c/(a^2b^2)`
If a, b, c, d are in continued proportion, prove that: a : d = triplicate ratio of (a – b) : (b – c)
Write True (T) or False (F) against the following statement:
0.9 : 0.36 : : 10 : 4
