IGCSE /Grade 10
Maths MCQ Based On Solving simultaneous equations using substitution word problems
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IGCSE Grade 10 Maths Solving simultaneous equations using substitution word problems
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£1 = 100p
Let’s say the number of students who contributed Rs. 10 is x and the number of students who contributed Rs. 20 is y. From the first statement, we know that in total, they collected Rs. 720, so we can write the equation: 10x + 20y = 720.
Follow the condition given and form equations.
Perimeter of rectangle = 2(l+b)
Let’s say the chemist uses x ml of Solution A and y ml of Solution B to make the final solution. Since the final solution has a volume of 100 ml, we can write the equation: x + y = 100.
Find equations using given pieces of information.
Let’s say the merchant uses x kg of Basmati rice and y kg of Sona Masoori rice to make the mixture. Since the final mixture has a weight of 20 kg, we can write the equation: x + y = 20.
The area of a rectangle is length times width.
Express the equation in the same variable.
Find equations using the given pieces of information.
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