Basically you are finding the volume of a rectangular prism of 3 by 2 meters cross section and 30 meters length. Volume = (3 m)(2 m)(30 m) = 180 cubic meters.
If 60% of the water has evaporated, 40% is left. Find 40% of 180 cubic meters to answer the 2nd part of this question.
Answer:
67
Step-by-step explanation:
2x3=6
402/6=67
2x3x67=402
hope this helped:)
let 1st and 2nd no be x and y respectively
1st case:x=4y
2nd case:x-y=12
substituting the value of x in 2nd case
4y-y=12
3y=12
y=12÷3
y=4
now putting the value of y in 1st case
x=4×4
=16
