5 pens and 6 books ka price Rs. 200 hai. 4 pens and 8 books ka price Rs. 225, then 1 pen and 1 book ka price batao?
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Answer:
pens = x
book = y
5x + 6y =200 , 20x+24y=800
4x + 8y = 225 , 20x+40y=1125
20x + 40y - 20x -24y = 1125 - 800
16y = 325
y= 325/16
325/2+4x=225
8x=115
x=115/8
so x+y = 115/8+325/16
555/16
Step-by-step explanation:
sandeep12188:
reply??
4x = 450/2 - 325/2
reply??
4x = 115/2
4x * 2 =115
8x = 115
sorry for inconvenience
4x=125/2 hona chahiye na.
ans aaya hai. pen price Rs 2.31 , books price Rs. 37.22
um u will have to solve the 555/16 and 115/8
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