Math, asked by kategrier17, 1 year ago

mr. june invested $8000 at 7. How much additional money must he invest at 4% in order that his total annual income may equal 5% of his entire investment

Answers

Answered by santosh9914
0
let $ R invest by mr. june

then equation will be

(7% of 8000)+(4% of R) = 5% of (8000+R)

=> 560+(4/100×R)= 5/100(8000+R)

=> (56000+4R)/100 = (40000+5R)/100

100 cancel both sides

=> 56000 - 40000=5R-4R

=> R = 16000

ie, mr. June must invest $16000
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