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Question

Remit's mother gave him Rs. 3xy2 and his father gave him Rs 5(xy2+2).Out of this total money, he spent Rs.(103xy2) on his birthday party. How much money is left with him? If x=2 and y=3 find the total amount left with him. [4 MARKS]


Solution

Forming the equation: 1 Mark
Steps: 2 Marks
Result: 1 Mark

As per the question,

The amount of money given by Remits' motherRs 3xy2.

The amount of money given by Remits' father Rs 5(xy2+2).

Total amount =3xy2+5xy2+10=3xy2+5xy2+10=8xy2+10

Total amount Remit spent =103xy2

Amount of money left =(8xy2+10)(103xy2)=8xy2+1010+3xy2=Rs.11xy2

Now if  x=2 and y=3, then on substituting the values we get,
Amount of money left with
= 11×2××3×3 = Rs 198

Hence, the amount of money left with Remit is Rs 198.


Mathematics

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