A/C is the answer for B because you multiply by b and then divide by c
Answer is 823.2 cu.in.
Reason
For the sphere
We know V=4/3 TT r^3
Radius is 3
V=4/3 (3.14) 3^3
V= 4/3 (3.14) 27
V= 113.1 for each sphere
8 spheres x 113.1 = 904.8 cu.in.
For the cubed shaped box
We know v= length x width x height
V= 12 x 12 x 12
V = 1728 cu.in.
Now we take volume of box and subtract volume of spheres to get space filled by packing beads
1728 - 904.8 = 823.2 cu.in.
For 1 normal day he gets 53×8 hours=$424
for 5 days of regular work he gets 424×5=$2120
for overtime 57×6.5=$370.5
for total earning =2120+370.5=$2490.5
Answer:
glassA=1/3×22/7×4²
=16.76
glass B=1/3×22/7×3²
=9.42
glass A is the correct answer
