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प्रश्न
Both x and y vary inversely with each other. When x is 10, y is 6, which of the following is not a possible pair of corresponding values of x and y?
विकल्प
12 and 5
15 and 4
25 and 2.4
45 and 1.3
उत्तर
45 and 1.3
Explanation:
Since, x and y vary inversely, i.e. x × y = k ...(Constant)
If x = 10 and y = 6
∴ xy = 10 × 6 = 60
In option (a), 12 × 5 = 60
In option (b), 15 × 4 = 60
In option (c), 25 × 2.4 = 60
But in option (d), 45 × 1.3 = 58.3
Hence, 45 × 1.3 = 58.3 is correct.
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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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