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ICSE Class 8 Answered

what would be the monthly income of Rani if she spend 0.45 of her income in maintenance,0.25 in food and other expenditure.out of the remaining she give half to her brother and save the other half which amount Rs300.also, find her other expenditure and maintenance cost
Asked by nk679895 | 15 Jul, 2018, 07:53: PM
answered-by-expert Expert Answer
begin mathsize 16px style Let space monthly space income space of space Rani space equals space 100 percent sign maintenance space equals space 0.45 space equals space 45 percent sign food space and space other space expenditure equals space 0.25 space equals space 25 percent sign Remaining space Income space equals space 100 percent sign space minus left parenthesis 45 percent sign space plus space 25 percent sign right parenthesis space equals space 30 percent sign Half space of space it space she space is space giving space to space her space brother space equals space 30 percent sign space minus space 15 percent sign space equals space 15 percent sign Rani apostrophe straight s space saving space equals space 15 percent sign space equals space Rs. space 300 rightwards double arrow Maintenance space equals space 45 percent sign equals space 300 space cross times space 3 space equals space Rs. space 900 rightwards double arrow Food space and space other space expenditure equals space 25 percent sign space space space space space 15 percent sign space equals space 300 space so space 25 percent sign space equals space straight x rightwards double arrow straight x space equals space fraction numerator 25 space cross times space 300 over denominator 15 end fraction space equals space 25 space cross times 20 space equals space Rs. space 500 end style
Answered by Yasmeen Khan | 16 Jul, 2018, 11:14: AM

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