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प्रश्न
Both u and v vary directly with each other. When u is 10, v is 15, which of the following is not a possible pair of corresponding values of u and v?
पर्याय
2 and 3
8 and 12
15 and 20
25 and 37.5
उत्तर
15 and 20
Explanation:
Since, u and v vary directly, i.e u/v = k ...(Constant)
If u = 10 and v = 15, then, `u/v = 10/15 = 2/3`
In options,
`8/12 = 2/3`
`15/20 = 3/4`
`25/37.5 = 2/3`
So, `15/20 = 3/4` is not a possible pair of corresponding values of u and v.
Hence, `15/20 = 3/4`
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संबंधित प्रश्न
In which of the following tables x and y vary directly?
(i)
| a | 7 | 9 | 13 | 21 | 25 |
| b | 21 | 27 | 39 | 63 | 75 |
(ii)
| a | 10 | 20 | 30 | 40 | 46 |
| b | 5 | 10 | 15 | 20 | 23 |
(iii)
| a | 2 | 3 | 4 | 5 | 6 |
| b | 6 | 9 | 12 | 17 | 20 |
(iv)
| a | 12 | 22 | 32 | 42 | 52 |
| b | 13 | 23 | 33 | 43 | 53 |
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