Arjun earned $36515 in 2019. This was an increase of 9% on his earnings in 2018. Work out his earnings in 2018.
Question
Arjun earned $36515 in 2019. This was an increase of 9% on his earnings in 2018. Work out his earnings in 2018.
Solution
To find out Arjun's earnings in 2018, we need to understand that the amount he earned in 2019 ($36515) is 109% of his 2018 earnings. This is because his 2018 earnings (which represent 100%) increased by 9% in 2019.
So, if $36515 is 109% of his 2018 earnings, we can find out the amount of his 2018 earnings by setting up the following equation:
100% / 109% = X / $36515
Solving for X (his 2018 earnings) gives us:
X = (100% / 109%) * $36515
X = 0.9174311926605505 * $36515
X = $33495.41
So, Arjun's earnings in 2018 were approximately $33495.41.
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