Vanita bought pens worth some ruppees . She bought notebooks worth three times more than the worth of pens. For this she paid ruppees 80. Find out the amount spent on pens and notebooks.
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Step-by-step explanation:
Suppose , Vanita bought pens worth 'x' rupees.
The amount of the notebooks, she bought is 3x rupees.
The total amount of both pens and notebooks (x+3x) rupees is given Rs.80.
∴x+3x=80
∴4x=80
∴x= 80/4
∴x=20
She must have bought pens worth Rs.20.
She must have bought notebooks worth Rs.3x=3(20)=Rs.60.
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