Question
A car travels from point A to point B at a speed 20%
slower than its usual speed and arrives 30 minutes late. If the distance between A and B is 150 km, what is the car's usual speed?Solution
Let the usual speed of car = 10x km/h Speed of car when it travels with 20% less speed = 80% of 10x = 8x Difference of time taken = 30 minutes 
x = 7.5 usual speed of car = 10x =Â 75 km/h
More Time and distance Questions
97 106 121 138 157 180
...5, 14, 41, 122, 365, 1094, ?
13 24 75 134 447 892
...9 16 56 318 2424 25070
...22, 23, 31, 57, 122, 247
There are 3 series, you have to find value of a, b, c and then establish relation among a,b,c.
19, 25, 45, a, 553, 2767
1560 760 360 160 6...
3720 3842 ? 4092 4220 4350
What will be the next number in the series?
2, 7, 23, 70, ?
8 6 2 ? -1 9.5
...In each of the following questions, a number series is given. After the series a number is given followed by (a), (b), (c), (d) and (e). You have to com...
