A groundwater sample was found to contain 500 mg/L total

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A groundwater sample was found to contain 500 mg/L total dissolved solids (TDS). TDS (in%) present in the sample is ____

1. 1.75%
2. 0.05%
3. 1.05%
4. 1.25%

Correct Option: B

0.05
TDS = 500 mg/L = .5g/L
1 litre = 1000g

∴ TDS =	0.5	× 100 = 005 %
	1000