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Quantitative Aptitude

Unit Digit of a Number

If C is kept ...

Question

If C is kept on as a constraint, how many ways are there for calling a tiger?

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 C 3
Three consecutive switches must be on in order to call a tiger. Since, C is already on, the tiger can be called in 3 ways by additionally putting on the switches AB, BD or DE.

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