the cost price of 3 exam pads and 2 pencils is 96, 4 exam pads and 3 pencils cost rs 134.find the total cost in rs of an exam pad and that of a pencil
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Step-by-step explanation:
cost price of 3 exam pad and 2 pencil 96
cost price of 4 exam pad and 3 pencil 134 96plus 134230
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let cost of exam pads be x and cost of pencil be y
so,
x +y = 96. (1)
x +y = 134. (2)
in first equation
let y = 10
x + 10 = 96
x = 96 -10
x = 86
let y =15
x+15 = 96
x =96 -15
x = 81
let y = 20
x +20 = 96
x = 96 - 20
x = 76
yese hi agli equation bhi solve karke graph bana lo Jo bhi point intersect ho raha hoga WO and hoga
so,
x +y = 96. (1)
x +y = 134. (2)
in first equation
let y = 10
x + 10 = 96
x = 96 -10
x = 86
let y =15
x+15 = 96
x =96 -15
x = 81
let y = 20
x +20 = 96
x = 96 - 20
x = 76
yese hi agli equation bhi solve karke graph bana lo Jo bhi point intersect ho raha hoga WO and hoga
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