Advertisements
Advertisements
Question
Determine if the following ratios form a proportion. Also, write the middle terms and extreme terms where the ratios form a proportion.
2 kg : 80 kg and 25 g : 625 g
Solution
2 kg : 80 kg and 25 g : 625 g
`2/80 = 1/40` and `25/625 = 1/25`
No. These are not in proportion.
APPEARS IN
RELATED QUESTIONS
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`.
Find the mean proportion of: 8.1 and 2.5
Determine if the following numbers are in proportion:
22, 33, 42, 63
Verify the following:
108 : 72 : : 129 : 86
Find the value of x in each of the following proportions:
55 : 11 : : x : 6
The cost of 4 dozen bananas is Rs 104. How many bananas can be purchased for Rs 6.50?
If a, b, c and d are in proportion, prove that: (5a + 7b) (2c – 3d) = (5c + 7d) (2a – 3b).
3 : 5 : : `square` : 20
Find the missing number in the box in the proportions:
`8/square = 3.2/4`
If 2x, 9 and 18 are in continued proportion, the value of x is ______.