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.(10−3xy2) 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]
Answer:
:
Forming the equation: 1 Mark
Steps: 2 Marks
Result: 1 Mark
As per the question,
The amount of money given by Remits' motherRs3xy2.
The amount of money given by Remits'fatherRs5(xy2+2).
Total amount =3xy2+5xy2+10=3xy2+5xy2+10=8xy2+10
Total amount Remit spent =10−3xy2
Amount of money left =(8xy2+10)−(10−3xy2)=8xy2+10−10+3xy2=Rs.11xy2
Now if x=2andy=3, then on substituting the values we get,
Amount of money left with
= 11×2××3×3 = Rs198
Hence, the amount of money left with Remit isRs198.
Was this answer helpful ?
:
Forming the equation: 1 Mark
Steps: 2 Marks
Result: 1 Mark
As per the question,
The amount of money given by Remits' motherRs3xy2.
The amount of money given by Remits'fatherRs5(xy2+2).
Total amount =3xy2+5xy2+10=3xy2+5xy2+10=8xy2+10
Total amount Remit spent =10−3xy2
Amount of money left =(8xy2+10)−(10−3xy2)=8xy2+10−10+3xy2=Rs.11xy2
Now if x=2andy=3, then on substituting the values we get,
Amount of money left with
= 11×2××3×3 = Rs198
Hence, the amount of money left with Remit isRs198.
Was this answer helpful ?
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