| (i) | x | 6 | 12 | 30 | 48 |
| y | 250 | 125 | 50 | 31.25 | |
| (ii) | x | 115 | 130 | 145 | 160 |
| y | 615 | 600 | 585 | 570 | |
| (iii) | x | 50 | 100 | 300 | 1200 |
| y | 300 | 150 | 100 | 75 |
A) Only (i)
B) Both (i) and (ii)
C) Both (ii) and (iii)
D) None of these
Correct Answer: A
Solution :
(i) For inverse proportion, xy= constant Now, \[6\times 250=1500\], \[12\times 125=1500,30\times 50=1500\] And \[48\times 31.25=1500\] \[\therefore \] The data is in inverse proportion. (ii) \[115\times 615=70725,\] \[130\times 600=78000\] \[\therefore \] The data is not in inverse proportion. (iii) \[50\times 300=15000\], \[100\times 150=15000\], And \[300\times 100=30000\] \[\therefore \] The data is not in inverse proportion.
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