Question

Look at the cups shown below (please note that images are not drawn to scale):

Answer 1

Answer: 21.9

Step-by-step explanation:

Answer 2

Solution:

Amount of juice hold by Cup B which is in the shape of a cylinder having width 2 inches that is radius 1 inches and height 7 inches

= $\pi r^2 h= \pi \times 1^2 \times 7= 7 \pi$ cubic inches

Amount of juice hold by cup A which is in the shape of a cone having width 2 inches that is radius 1 inches and height 3 inches

 = $\frac{1}{3} \times \pi \times r^2 h\\\\ = \frac{1}{3}\times \pi \times 1^2 \times 3=\pi$ cubic inches

Amount of juice that cup B will hold than cup A when both are completely full    = $7\pi -\pi = 6 \pi$ cubic inches

= 6 × 3.14

= 18.84 cubic inches

Option A: 18.8 cubic inches