Question
A motor car starts with a speed of 60 km/h and increases
its speed after every two hours by 15 km/h. In how much time will it cover a distance of 360 km?Solution
The motor car starts at 60 km/h and increases speed by 15 km/h every 2 hours. It needs to cover 360 km. First 2 hours at 60 km/h → Distance covered = 120 km → Remaining = 240 km Next 2 hours at 75 km/h → Distance covered = 150 km → Remaining = 90 km Next 1 hour at 90 km/h → Distance covered = 90 km → Completed Total time taken = 2+2+1=5 hours
1 9 64 255 755 1835
...123   125   129   132   ?   145
30    32    67    206    ?     4166
7 98 644 3145 12596 37797
...12Â Â Â Â Â 13Â Â Â Â Â Â 22Â Â Â Â Â Â 47Â Â Â Â Â 96Â Â Â Â Â ?
...If  8      x     6.5    12.25     22.125     36.0625
Then, 20% of 25% of x = ?
...If 24 33 x 42 6 51
Then, 20% of x + 40% of x=?
...Given below are three series I, II and III. Each series consist an odd one out number. Odd one out number in series I, II and III are 'P', 'Q' and 'R',...
1 5 13 25 41 ?
20, 36, 103, 406, ?, 12130
Relevant for Exams:
