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The cost of a pen is Rs (x + 5) and Varun bought (x + 5) pen.
a) Find the total amount paid by him in terms of x.
i. R

By Eloise

The cost of a pen is Rs (x + 5) and Varun bought (x + 5) pen.
a) Find the total amount paid by him in terms of x.
i. Rs x^2 + 5x + 6
ii. Rs x^2 + 10x + 25
iii. Rs x^2 − 10x + 25
iv. None of above

b) If x = 10, find the amount paid by him.
i. Rs 200
ii. Rs 215
iii. Rs 225
iv. Rs 230

(1)

c) If x = -1, find the amount paid by him.
i. Rs 13
ii. Rs 14
iii. Rs 15
iv. Rs 16

d) If x^2 = 25, find total number of pen?
i. 5
ii. 10
iii. 20
iv. 15

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Eloise

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2 thoughts on “The cost of a pen is Rs (x + 5) and Varun bought (x + 5) pen.<br /> a) Find the total amount paid by him in terms of x.<br /> i. R”

  1. [tex] \huge \colorbox{gold}{Answer}[/tex]

    a) total amount = (x+5) ×(x +5) = x(x+5) + 5(x+5)

    = x ^2 +5x + 5x +25

    = x ^2 +10 x +25.

    b)If x = 10….

    =(10 +5) ×(10+5)

    =15×15

    =225

    c)(-1+5) x(-1+5)

    =4×4

    =16

    d)x ^2 =25

    x ^2 =5^2

    x =5

    • Hope it helps ❤
    Reply

  2. a) total amount = (x+5) ×(x +5) = x(x+5) + 5(x+5)

    = x ^2 +5x + 5x +25

    = x ^2 +10 x +25.

    b)x = 10

    =(10 +5) ×(10+5)

    =15×15

    =225

    c)(-1+5) x(-1+5)

    =4×4

    =16

    d)x ^2 =25

    x ^2 =5^2

    x =5

    Reply

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