Wipro Company Numerical Ability Time Distance and Speed

The drive from Oakland to Pinewood was a tricky one. I covered the uphill distance of 70 miles at 28 miles per hour. The return journey from Pinewood to Oakland was downhill, and I managed to drive at 70 miles per hour. What was my average speed for the entire journey?
A. 60 miles/hr
B. 40 miles/hr
C. 50 miles/hr
D. 30 miles/hr
E. 54 miles/hr

Read Solution (Total 1)

avg speed=2xy/(x+y)
x=28 miles/hr
y= 70 miles/hr
avg speed=40miles/hr
ans:B
11 years agoHelpfull: Yes(1) No(0)

Wipro Other Question

My grandson is about as many days as my son in weeks, and my grandson is as many months as I am in years. My grandson, my son and I together are 140 years. Can you tell me my age in years?
A. 80
B. 90
C. 85
D. 84
E. 89 When I add 3 times my age 3 years from now to 4 times my age 4 years from now, I get 8 times my current age. How old will I be 3 years from now?
A. 28 years
B. 24 years
C. 20 years
D. 32 years
E. 30 years