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10. Algebraic Expressions
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Q74 of 100 Page 312

Arjun bought a rectangular plot with length x and breadth y and then sold a triangular part of it whose base is y and height is z. Find the area of the remaining part of the plot.

initial area = xy

area sold =


remaining area =


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72

Each symbol given below represents an algebraic expression:

= 2x2 + 3y, = 5x2 + 3x, = 8y2 – 3x2 + 2x + 3y


The symbols are then represented in the expression:



Find the expression which is represented by the above symbols.

73

Observe the following nutritional chart carefully:


Write an algebraic expression for the amount of carbohydrates in ‘g’ for


(a) y units of potatoes and 2 units of rajma (b) 2x units tomatoes and y units apples.

75

Amisha has a square plot of side m and another triangular plot with base and height each equal to m. What is the total area of both plots?

76

A taxi service charges ₹ 8 per km and levies a fixed charge of ₹ 50. Write an algebraic expression for the above situation, if the taxi is hired for x km.

Questions · 100
10. Algebraic Expressions
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