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Gaurav Seth 6 years, 7 months ago
The example of miscible liduids are alcohol and water ,salt and water,sugar and water
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Yogita Ingle 6 years, 8 months ago
If the race track is 560 m
then, Total distance covered in 8 rounds = 560 × 8 = 4480m = 4480/1000 = 4.48 km
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Yogita Ingle 6 years, 8 months ago
If first number is x, then second number is 40 - x
As per given condition
{tex}\begin{array}{l}\;\frac1x+\;\frac1{40\;-\;x}\;=\;\frac25\\\frac{40-x\;+\;x}{x(40\;-\;x)}=\;\frac25\\\frac{40}{40x-\;x^2}=\;\frac25\end{array}{/tex}
2(40x - x2) = 40 (5)
80x - 2x2 = 200
2x2 - 80x+ 200 = 0
x2 - 40x + 100 = 0
Posted by Mamta Sharma 6 years, 8 months ago
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Yogita Ingle 6 years, 8 months ago
Cost of 15 bags is Rs 450.
Cost of each bag = 450 ÷ 15 = Rs 30
Each bag contains 3kg sugar,
so cost of 1 kg sugar = 30 ÷ 3 = Rs 10
Thus, cost of 1 kg sugar is Rs 10.
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