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Byju's Answer
Standard VII
Mathematics
Understanding Algebra with the Help of Patterns
24,21,18,15 …...
Question
24, 21, 18, 15 .......
What are the next two terms in the given sequence?
A
12, 9
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B
10, 9
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C
11, 8
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D
12, 7
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Solution
The correct option is
A
12, 9
Let the next two terms in the sequence be x and y respectively.
24, 21, 18, 15, x , y ....
21 = 24 - 3
18 = 21 - 3
15 = 18 - 3
Observing the pattern we observe that each term is obtained by subtracting 3 from the previous term.
x = 15 - 3 = 12
y = 12 - 3 = 9
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