NIMCET 2009 Question Paper with solutions

Question : 42 of 120

Marks: +1, -0

How long would it take you to count 1 billion orally if you could count 200 every minute and were given a day off every four years? Assume that you start counting on 1 January 2001

$10 yr, 107 days, 5 h. 20 min$
$8 yr , 287 days, 15 h , 40 min$
$9 yr , 187 days, 5 h , 20 min$
$9 yr , 278 days, 12 h , 34 min$

Validate

Solution:

1 billion

=10^{9}

Total time taken for counting

= {10^{9}}/{200}=5 × 10^{5} {min}

=83333 h 20 min
=3472 days 5 h 20 min
=9 yr 187 days 5 h 20 min

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