Question

The width of a laptop screen is 10 cm more than the height h.

The area of the screen is 600 cm2. Then the equation for area is,

a) h(h + 10) = 600

b) h x h = 600

c) h(10 - h) = 600

d) h ( h + 100) = 600

a) (a)
b) (b)
c) (c)
d) (d)

Answer 1

Hey friend!

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Question : The width of a laptop screen is 10 cm more than the height h.  The area of the screen is 600 cm2. Then the equation for area is,

Options:

a) h(h + 10) = 600

b) h x h = 600

c) h(10 - h) = 600

d) h ( h + 100) = 600

Solution:

Let h cm be the variable of height of the laptop screen

Then,

width of the laptop screen is h + 10 cm

We know that,

$\star \ Area \ of \ a \ rectangle \ = \ length \ * \ width$

According to the question,

$h \ * \ (h + 10) = 600$

$\implies h( h + 10) = 600$

Answer: Option a → h(h + 10) = 600

I hope it helps you

Answer 2

Option a

h(h+10)

Area of rectangle =L×B

Breadth of the laptop =H

Length of laptop = h +10

Given

Area of screen =l×b

=h×(h+10)

#proved

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