John find 1/5 of the bar chocolate he bought was already eaten by his brother. he eat 3/4 of what was remaining. find the portion of the chocolate that is left after john eats.

1/5 is left.

Step-by-step explanation:

Portion remaining after the bar was eaten by his brother = 1 - 1/5 = 4/5.

Portion remaining after John ate 3/4 of this = 4/5 - 3/4* 4/5 = 4/5 - 3/5

=  1/5.

3 1/3 x 2 3/5 = 8 2/3

step-by-step explanation:

just multiply the first number by the second number to get your answer.

this is answer of 144 cubic meters