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Speed = Distance/time = 135/15 = 9 km/hr According to the question, New time = 3/5 x 15 = 9 hrs New distance = 1/2 x 135 = 67.5 km Required speed = Distance left/Time left = 67.5/6 = 11.25 km/hr
A frustum of a square pyramid has base edges of 10 cm and 6 cm, and a height of 8 cm. What is its volume? Calculate approximate value
In a zoo, tiger and ostrich were counted. If heads were counted, there are 400 and if legs are counted there were 820. How many ostrich are there?
(141.95 – 112.06) × (45.21 – 38.99) = ?
In what ratio coffee at 290 Rs/kg should be mixed with the coffee at 365 Rs/kg so that after mixture its rate become 325 Rs/kg if the quantity of 1st ty...
The average wage of a group of 23 labourers is Rs. 460. If 4 persons receiving average wage of Rs. 350 leave the group and 2 persons receiving average w...
Two trains, A and B, are traveling towards each other on parallel tracks. Train A is traveling at a speed of 60 miles per hour, and Train B is traveling...
The ratio of liquor and soda in a mixture of 70 liters is 3:2. How much liquor should be mixed to make the ratio 7:4?
A vessel contains 50 liters of a solution with 40% acid. 10 liters of this solution are removed and replaced with a solution containing 70% acid. The pr...
A car travel 20km/h for 30 min and at x km/h for 45 min. If the average speed of the car for entire journey is 14 km/h find the value of x.
AD is the median of triangle ABC. P is the centroid of triangle ABC. If AP = 14 cm, then what is the length of PD?
