What we know:

3 durians + 2 mangoes = 2.2kg

Mass of 4 durians = mass of 6 mangoes

Divide each side by 4:

Mass of 1 durians = mass of 1.5 mangoes

Now we can insert 1.5 mangoes in the place of 1 durian in the first equation:

3 durians + 2 mangoes = 2.2kg

4.5 mangoes + 2 mangoes = 2.2kg

6.5 mangoes = 2.2kg

1 mango ≈ 0.334 kg

1 durian ≈ 0.334kg * 2/3 = 0.226kg

5* 0.226kg + 19*0.334kg = 7.47kg

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Eva Töx
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4 students helped

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6 months ago


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