A sequence of patterns uses grey squares and white squares here are the first four patterns workout the total number of squares in pattern 100 3 marks
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Answer:
100
Step-by-step explanation:
if pattern 1 has 1 shade, pattern 2 has 2 shades, pattern 3 has 3 shades, and so on... therefore, pattern 100 has 100 shades of grey.
Total number of squares in pattern 100 is 303.
Square pattern represents squares stacked on top of each other to achieve a unique pattern.
Let the number of squares in the pattern n is [tex]p_{n}[/tex] then we know
[tex]P_{n+1}-P_{n}=3, P_{1}=6[/tex]
So, [tex](P_{n}-P_{n-1})+(P_{n-1}-P_{n-2})+.......+(P_{2}-P_{1})=3 \times (n-1) = 3n - 3[/tex]
Which is [tex]P_{n}-P_{1} =3n-3[/tex]
So, [tex]P_{n}-6=3n-3[/tex]
[tex]P_{n} =3n+3[/tex]
So, [tex]P_{100} =3 \times 100+3[/tex]
[tex]P_{100} =300 +3[/tex]
[tex]P_{100} =303[/tex]
Total number of squares in pattern 100 is 303.
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