Question
'A' and 'B' are running on a circular track of length
4500 metres. 'A' is running clockwise at 5 m/s while 'B' is running anti-clockwise at 7 m/s. Find the difference between the distance covered by 'A' and 'B' by the time they meet for the tenth time.Solution
ATQ, Time taken to meet for the first time = 4500 ÷ (5 + 7) = 375 seconds So, time taken to meet for 10th time = 375 × 10 = 3750 seconds So, distance covered by 'A' in 3750 seconds = 3750 × 5 = 18750 metres And distance covered by 'B' in 3750 seconds = 3750 × 7 = 26250 metres So, required difference = 26250 - 18750 = 7500 metres
If the length of a rectangle becomes double and its breadth becomes three-fourth, then find the percentage increase in its area.
What is the difference between (in m2) the area of a circular field of radius 28 metres and area of a rectangular piece of land having its di...
The area of the largest circle, that can be drawn inside a rectangle with sides 100 cm by 91 cm, is:
The curved surface area of a cone exceeds that of a cylinder by __ cm². The radius of the cone is twice that of the cylinder. The area of the cylinder...
The length of the diagonal of a rectangle is 26 cm, and one side is 10 cm. The area of the rectangle is:
A tank whose length, width and height are 21 metres, 17 metres and 10 metres respectively is completely filled with juice. If the juice costs Rs.5/m
If the areas of three adjacent faces of a rectangular box which meet in a corner are 12cm2, 15cm2 and 20cm2 respective...
The curved surface area of a right cylinder is 3696 cm³. Its height is three times its radius. What is the capacity (in litres) of the cylinder? (T...
A giant circular wheel has a diameter of 28 metres. In how many revolutions will the wheel cover a total of 26.4 km?
The volume of cone is 4752 cm3. If its height is 3.5 cm then find the radius of the cone.
Relevant for Exams:
