Since the distance travelled by a boy (going to school and coming back from school) is equal. So, average speed = 2xy/(x + y) Average speed = (2 x 55 x 45)/(55 + 45) Average speed = (2 x 55 x 45)/100 = 49 km/hr
Oceanic tides are the smallest on the
Hot air balloon rises up because
Box A has 10 g of gold and box B has 10 g of copper. 1 g of the material in B is added to A and mixed and 1 g of the resulting material in A is added to...
' Kammakaras ' in ancient period, were -
Sunit is going towards north, after going 8 km he turns left and goes 6 km. What is the distance of Sunit from initial point.
Which amongst the following was not correct about the ancient town of Mathura ?
The square of the sum of two numbers equals the square of the difference between them. Which of the following has to be true?
A Pilot flying a helicopter looks at the image of the moon in a river. He finds the diameter of the moon covering the entire width of the river. When he...
Who, in mythology, wished for everything he touched to turn to gold?
Among the following taxes, which is the direct tax in India?
