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Question

Shelton and his friend are arranging beads in an abacus. How many beads are needed to fill the next term in the given sequence?


A
1
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B
2
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C
3
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D
4
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Solution

The correct option is B 2
The sequence formed by the given beads is:

2, 1, 2, 3, 2, 1, 2, 3, 2, 1,...


In this sequence, 2, 1, 2, 3 is repeated.

Hence, the next term should be 2.

Hence, 2 beads are needed to fill the next term in the given sequence.

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