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Percentage Composition

Mass of beake...

Question

Mass of beaker=10g
Mass of mixture+beaker=25g
Mixture contains 30% sand. Find the weight of sand.

A

5 g

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B

4.5 g

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C

3 g

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D

3.5 g

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Solution

The correct option is B 4.5 g
Mass of mixture= $25 g - 10 g = 15 g$
Percentage of sand=30%= $\frac{M a s s o f s a n d}{M a s s o f m i x t u r e}$
Mass of sand = $0.3 \times 15 g = 4.5 g$

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