a numder is increased by 5%and the decreased by 5%. find the net increase or decrease per cent
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Answered by
2
Answer:
Let the number be 100.
Increase in the number = 40 % = 40 % of 100
= (40/100 × 100)
= 40
Therefore, increased number = 100 + 40 = 140
This number is decreased by 40 %
Therefore, decrease in number = 40 % of 140
= (40/100 × 140)
= 5600/100
= 56
Therefore, new number = 140 - 56 = 84
Thus, net decreases = 100 - 84 = 16
Hence, net percentage decrease = (16/100 × 100) %
= (1600/100) %
= 16 %
Answered by
1
Answer:
0.25%
Step-by-step explanation:
formula =a+b+ab/100
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