Question

the cost of pen is presented by X and that of a pencil is y . then the algebraic expression representing the cost of 7 pens and 8 pencils is
a) 8x+7x
b) 7x+8y
c) 7x+3y
d) 6x+4y​

Answer 1

Answer:

b) 7x+8y is the correct option

Answer 2

SOLUTION

TO CHOOSE THE CORRECT OPTION

The cost of pen is presented by x and that of a pencil is y . Then the algebraic expression representing the cost of 7 pens and 8 pencils is

a) 8x + 7x

b) 7x + 8y

c) 7x + 3y

d) 6x + 4y

EVALUATION

Here it is given that the cost of pen is presented by x and that of a pencil is y .

Then the cost of 7 pens = 7x

The cost of 8 pencils = 8y

So the total cost of 7 pens and 8 pencils

= 7x + 8y

FINAL ANSWER

Hence the correct option is b) 7x + 8y

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