The 12 digits on the face of a clock are to be represented e

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ESE 2018 Prelims Paper I
Engineering aptitude
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ADS

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Pink
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Brown
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Engineering aptitude

14

M: +2.00/-0.66

The 12 digits on the face of a clock are to be represented employing contributions of only the number 9 as either 9 or The other prescribed conditions are (i) the least number of uses alone are permitted; and (ii) when alternates are possible, use of 9 will be preferred over use of which should be used minimally. How many times would have to be used?

[ESE 2018 Prelims Paper I]

A 6

B 5

C 4

D 3