Last month Mr shafique's mass increased by 10% to 88 kg. Find his original mass? This month his mass decreased by 88kg to 84 kg.Find the percentage decrease in his mass this year?
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Step-by-step explanation:
100% + 10% = 110%
88 kg ÷ 110% × 100% = 80 kg
88 - 84 = 4 kg ⇒ 4÷88×100 ≈ 4.5%
This month Mr. Shafique's mass is decreased by 4.5%
From beginning of Mr. Shafique's mass observation the mass did not decreased. The mass is increased by 4 kg which is 5% (4÷80×100=5%).
... We cannot say anything about mass change over the year.
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