Question

$topic - \: mathematics$
$objective - \: recapitulation$
7. Suppose 2 kg of sugar contains 9×10⁶ crystals. How many sugar crystal are there in:

i) 5 kg of sugar
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ii) 1.2 kg of sugar
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Answer 1

Answer:

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Step-by-step explanation:

i) Given,

$\sf \: 2kgs \: of \: sugar \: contain \: 9 \times {10}^{6} crystals \\ \sf \: 1kg \: of \: sugar \: contain \: \frac{9 \times {10}^{6} }{2} crystals \\ \sf \: and \\ \sf 5kgs \: of \: sugar \: contain \frac{9 \times {10}^{6} }{2} \times 5crystals \\ \sf= 2.25 \times {10}^{7} crystals$

ii) Again

$\sf \: 2kgs \: of \: sugar \: contains \: 9 \times {10}^{6} crystals \\ \sf \: 1kg \: of \: sugar \: contains \: \frac{9 \times {10}^{6} }{2} crystals \\ \sf \: and \\ \sf \: 1.2kgs \: of \: sugar \: contains \frac{9 \times {10}^{6} }{2} \times 1.2crystals \\ \sf \: = 5.4 \times {10}^{6} crystals$

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