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A car running at speed of $50$ km/hr. If speed of car increases $6$ km at the end of every hour, then what will be distance covered at end of $10$ hours from start of journey?
A certain distance is covered with a certain speed. If half of this distance is covered in double time, then the ratio of the speed to that of the original one is
A hare, pursued by a greyhound, is $30$ m before him at starting; whilst the hare takes $4$ leaps the dog takes $3$; in one leap the hare goes $1.5$ m and the dog goes $2.5$ m. How far will the hare have gone when she is caught by the greyhound?
On a river, B is intermediate station equidistant from the stations A and C. If a boat can go from A to B and back in $5$ hours $15$ min and from A to C in $7$ hrs, how long would take to go from C to A?
X and Y walk around a circular course $100$ km from the same point. If they walk at $5$ kmph and $7$ kmph respectively in the same direction, when will they meet?

In a circular race of $1200$ m, A and B start from the same point and at the same time with speeds of $27$ kmph and $45$ kmph.  Find when will they meet again for the first time on the track when they are running in the same direction?

Sir is there any special difference that both of the questions have separate method of solving?
A man sets out on cycle from Delhi to Agra, and  at the same time another man starts from Agra to Delhi on cycle. After passing each other they complete their journeys in $2\dfrac{6}{7}$ and $5\dfrac{3}{5}$ hours respectively. At what rate does the second man cycle if the first man cycles at $14$ kmph ?
Two guns were fired from the same place at an interval of $28$ minutes and a person approaching the place at the rate of $44$ kmph hears the sounds at an interval of $27$ minutes. The speed of the sound in metre/second is
A bullock cart has  to cover a distance of $80$ kms in $10$ hours. If the bullock cart covers half of its journey in $3/5\text{th}$ time, what should be its speed in kmph to cover the remaining distance in the time left?
Two friends A and B simultaneously start running around a circular track. They run in the same direction. A travels at $6$ m/s and B runs at $b$ m/s. If they cross each other at exactly two points on the circular track and $b$ is a natural number less than 30, how many values can $b$ take?
A salesman travels a distance of $50$ km in $2$ hours and $30$ minutes. How much faster, in kilometers per hour, on an average, must he travel to make such a trip in $\dfrac{5}{6}$ hour less time?"