A cylinder of height h is 6/7 of water. When all of the water is poured into an empty cylinder whose radius is 25 percent larger than that of the original cylinder, the new cylinder is 3/5 full. The height of the new cylinder is what percent of h? Choose the correct choice from the following answers:
A) 25% B) 50% C) 60% D) 70% E) 100%
Basically we can disregard the radius is 25% information, as we are only asked about the height of the original and the new cylinder.   This is becausethe new cylinder is 3/5 fullmeans the same as that it's height is 3/5.   Original cylinder 6/7   New cylinder 3/5   So 3/5/6/7 = 3/5*7/6= 
<gadget id="calculator">3/5*7/6</gadget>
<output>7/10 = around 0.7</output>
0.70 or 70%.   Answer 70%
<result>D</result>
A cylinder of height h is 6/7 of water. When all of the water is poured into an empty cylinder whose radius is 25 percent larger than that of the original cylinder, the new cylinder is 3/5 full. The height of the new cylinder is what percent of h?