Question
The radius of a circular garden is 42 m. The distance
(in m) covered by running 8 rounds around it, is: (Take )Solution
Radius(r) = 42 m Distance(d) = 8 rounds 1 round = 2 πr =2× 22/7 × 42 = 264 m Distance(d) = 8 = 2112 m
- Four lights blink at intervals of 18 seconds, 24 seconds, 36 seconds, and 48 seconds respectively. How many times will all the lights blink together in 3 h...
- The ratio of the angles of a quadrilateral is 3:2:7:8. What is the sum of the largest and the smallest angle?
- The sum of the LCM and HCF of two numbers is 370 and the difference between the LCM and HCF is 354. If one of the numbers is 59, find the other number.
The diagonals of a rhombus are in the ratio 7:5, and its area is 3,500 cm². A circle is formed taking the smaller diagonal as the diameter. Find the di...
- A car moves from city ‘A’ to city ‘B’ at 50 km/h and returns back from city ‘B’ to city ‘A’ at 75 km/h. Find the car’s average speed duri...
In a test, Riya got 40% of the total marks and was short by 16 marks to pass. Meena obtained 50% marks and secured 4 marks more than the passing marks. ...
P can do a piece of work in 20 days, Q can do the same piece of work in 24 days while R can do it in 30 days. They started working together but after 4 ...
Determine the co-ordinates of the point where the line through the points A (3, 4, 1) and B (5, 1, 6) crosses the XY- plane?
- A hall is in the shape of a rectangle with a length of 30 metres and its perimeter is 90 metres. If the hall is to be tiled at Rs.10 per square metre, calc...