Advertisements
Advertisements
प्रश्न
Write (T) for true and (F) for false in case of the following:
32 kg : Rs 36 : : 8 kg : Rs 9
विकल्प
True
False
उत्तर
32 kg : Rs 36 : : 8 kg : Rs 9
Product of means = 36 × 8 = 288
Product of extremes = 32 × 9 = 288
Product of means = Product of extremes
Hence, (T).
APPEARS IN
संबंधित प्रश्न
Find the fourth proportional to 3a, 6a2 and 2ab2
If `(4m + 3n)/(4m - 3n) = 7/4`, use properties of proportion to find `(2m^2 - 11n^2)/(2m^2 + 11n^2)`
If p, q and r in continued proportion, then prove the following :
`"p"^2 - "q"^2 + "r"^2 = "q"^4 (1/"p"^2 - 1/"q"^2 - 1/"r"^2)`
If a, b, c and dare in continued proportion, then prove that
ad (c2 + d2) = c3 (b + d)
If `a = (b + c)/(2), c = (a + b)/(2)` and b is mean proportional between a and c, prove that `(1)/a + (1)/c = (1)/b`.
If the cost of a dozen soaps is Rs 285.60, what will be the cost of 15 such soaps?
If a, b, c are in proportion, then
Write the mean and extreme terms in the following ratios and check whether they are in proportion.
400 gm is to 50 gm and 25 rupees is to 625 rupees
Determine if the following are in proportion.
33, 121, 9, 96
The table, given below, shows the values of x and y, where x is proportional (directly proportional) to y.
x | A | 24 | 15 |
y | 12 | B | 20 |
The values of A and B are: