7 question first and second part and eleventh question
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1st part answer _ let the original price be x
so 15% is reduced
x- 15% of x
x-15x/100
85x/100
17x/20= 425
x=425×20/17
x=500
so original.price was 500 rs
2nd part answer_ original salary was x now
salary increased by 25/2%
x+x/8=9000
9x/8=9000
x=9000×8/9
x=8000
so original salary was 8000
so 15% is reduced
x- 15% of x
x-15x/100
85x/100
17x/20= 425
x=425×20/17
x=500
so original.price was 500 rs
2nd part answer_ original salary was x now
salary increased by 25/2%
x+x/8=9000
9x/8=9000
x=9000×8/9
x=8000
so original salary was 8000
lad1:
Thank you so much
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