It is given in the problem that out of 25 students in Hansels class 17 students went to the class trip to the zoo. From the above information it is easy to find the percentage of students that went for the class trip to the zoo. Total number of students in the class = 25 Number of students that went for the class trip to the zoo = 17 Then Percentage of students that went to the zoo = (17/25) * 100 = (17 * 4) percent = 68 percent So 68% of the students in Hansels class went for the class trip to the zoo.
Lets calculate gear ration T2/T1 so the gear ratio will be 1.6 it simply means dat if u rotate large gears one full revolution it tends to turn another short wheel to 1.6 revs, so in ur qtion the large whell revs 100 den u must multiply wid 1.6*100= 160 revs
