(i) Increase the number 160 by 20%.
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Answer:
new number after increase of 20% is 192.
Step-by-step explanation:
increase by 20% implies,
number + 20% of number
therefore, new number ::
= 160 + 20/100(160)
= 160 + (20×160)/100
= 160 + 3200/100
= 160 + 32
= 192
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