Let the distance to be travelled be ‘x’ km Time taken when speed is 11 km/hr = (x/11) hours Time taken when speed is 22 km/hr = (x/22) hours According to the question, (x/11) – (x/22) = 2 Or, 2x – x = 2 × 22 Or, x = 44 km Time taken to travel 44 km with speed of 11 km/hr = 44/11 = 4 hours Therefore, he started at 12 – 4 = 8 a.m. Therefore, required speed to reach the destination at 11 a.m. or 4 hours = 44/3 = 14.66 km/hr
What is the amount allocated for Transportation and Entertainment combined?
A bag contains 8 black and 10 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
In a triangle, the inradius is 6 cm, the circumradius is 9 cm, and the area is 54 cm². What is the semiperimeter of the triangle?
A shopkeeper priced an article at 75% above its cost price and offered a 30% discount on it during the sale. Alternatively, if he had applied two consec...
A hemispherical bowl of inner radius 10 cm is filled with water. If the water is poured into a cylindrical container with a radius of 5 cm, what will be...
If the mean of four observations is 20 and when a constant C is added to each observation the mean becomes 22 the value of C is –
Simplify the given expression:
6 × 6 ÷ 6 of 6 × 60% of 600
A solution contains vinegar and water in equal proportions. If this solution is mixed with another solution of water in the ratio 1:4, what is the resul...
A principal of ₹8000 is invested at a compound interest rate of 10% per annum. What will be the amount after 2 years?