$\lfloor$ $\cdot$ $\rfloor$ following

Algebra Level pending

Hint:The answer of above problem is not integer and we use $\lfloor$ $\cdot$ $\rfloor$ for the above options of problem.

Note: floor function denote as $\lfloor$ $\cdot$ $\rfloor$ .

C A B D

1 solution

Vilakshan Gupta
Mar 15, 2018

Bobby,In 1 minute, will eat $\dfrac{52}{4.5}$ pieces.

Therefore In 1 hour or $60$ minutes, he will eat $\dfrac{52}{4.5}\times 60$ pieces.

Since each cake has $32$ pieces, the number of cakes he will eat is given by $\dfrac{\dfrac{52}{4.5}\times 60}{32}=21.67$ .

So, our answer is $\lfloor 21.67 \rfloor =\boxed{21}$