exam Maths Puzzle Numerical Ability

Tutors please help me

Round these to four decimal places

In12

and

log 0.65

Thanks so much for your help.

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exam Other Question

interest is compounded semiannually. Find the amount in the account after the given time:
Principal Rate of interest Time
$2000 5% 3 years A number is 2 1/10 more than its reciprocal. Find the number.
{2/3, 3/5, 5/4, 5/2}

Please teach me how to do this in order by order!!! PLEASE!!! Thank you.