Time taken by ship B and D to travel their respective destination
Direction: Study the given line graph and pie chart carefully and answer the following questions accordingly.
Line graph shows the speeds (in km/h) of five different ships in a river and the speed of the water (in km/h) and pie chart shows the percentage of distance (in %) travelled by all the five ships
Question 1: Time taken by ship B and D to travel their respective destinations in downstream is approximately ______ percent more or less than time taken by ship E to travel its destination in upstream.
A. 30.812% less
B. 54.825% More
C. 27.812% Less
D. 23.568% More
E. None of these
Right Answer is: A
SOLUTION
Time taken by ship B (in downstream) = 450/54 = 25/3 hour
Time taken by ship D (in downstream) = 540/50.5 = 1080/101 hour
Time taken by ship B + ship D = (25/3) + (1080/101) = 5765/303 hour
Time taken by ship E (in upstream) = 660/24 = 55/2 hour
Time taken by ship B and D (in downstream) is percent more or less than time taken by ship E ( in upstream) = [(2005/101 - 55/2)/(55/2)] × 100 = -30.812% (Approx.)
