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Mathematics NULL Medium
Question

Water tax rises 20% but consumption falls 20%. What is the net change in expenditure?

A
No change
B
5 % decrease
C
4 % increase
D
4 % decrease
✓ Official correct answer

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A
No change
Official option

No member explanations yet for this option.

B
5 % decrease
Official option

No member explanations yet for this option.

C
4 % increase
Official option

No member explanations yet for this option.

D
4 % decrease
Official option

No member explanations yet for this option.

Explanation

Factor = 1.2 × 0.8 = 0.96 ⇒ 4% decrease.

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