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एक व्यक्ति का मासिक वेतन रु 13,500 है और उसका मासिक खर्च रु 9000 है। अगले वर्ष उसका वेतन 14% बढ़ जाता है और उसका खर्च 7% बढ़ जाता है, तो उसकी बचत में प्रतिशत वृद्धि ज्ञात करे ?
A. `7%`
B. `21%`
C. `28%`
D. `35%`

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Best answer
Correct Answer - c
(c ) Income of the person = 13500
Expenditure of the person = 9,000
Savings of the person = (13,500 - 9000
4500
image
`(7xx2+x x1)/(2+1)=14`
14 + x= 42
x= 28
Hence, required increase in savings = 28%
Alternate
First of all find the ratio of income,
exppenditure and savings
image
% charge in savings ``= (28)/(100)xx100`
= 28%

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