in a park, the number of plants increase by 9% over the previous year. of the number of plants now is 62130, how many many plants were there in previous year?
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Answer:
There were 57000 plants in the previous year.
Step-by-step explanation:
Let p be the number of plants in the previous year.
Number of plants now
= p increased by 9%
= p + 9% of p
= p + 0.09 × p
= ( 1 + 0.09 ) × p
= 1.09 × p
We are given that the number of plants now is 62130, so
1.09 × p = 62130
=> p = 62130 / 1.09 = 57000
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