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Here, AB and CD are diameters. Let AB = 2x cm Radius of circle = x cm Area of remaining part of the square = (2x) ²-Пх² = 4x²-Пх² According to question, 4x2-Пх2=42 x² [4-22/7] = 42 x2 x 6/7 = 42 x2=49 x = 7cm Diameter of circle = 7×2 = 14 cm 
The speed of a bike increases by 3 km/hr after every 1 hour. If the distance travelled by the bike in 1st hour is 22 km, the find the total distance tra...
Speed of a car and a bus is 20 km/h and 10 km/h, respectively. If the time taken by the car to cover a distance of ‘9x’ km is 4 hour less than time ...
The speed of a scooter is 80 km/h and it takes 5 hours to cover a certain distance. A car covers the same distance in 4 hours. If the speed of the scoot...
Which of the following can be true?
i. R reached the destination in 5hrs and P reached the destination in 3 hrs
ii. R reached the desti...
R jogs at twice the speed of walking and runs at twice the speed of jogging. From his home to office, he covers half of the distance by walking and the ...
The speed of a bike increases by 6 km/hr after every 1 hour. If the distance travelled by the bike in 1st hour is 30 km, the find the total distance tra...
‘A’ and ‘B’ started moving towards each other at same time with a speed of 23 km/hr and 24 km/hr, respectively. If the di...
When the Ratio of speeds of Aman and vinod is given as 9 : 7 respectively. If Aman gives vinod a start of 60 metres then how far must be the winning Lin...
Resham travels 60 km at 20 km/h by cycle, 120 km at 60 km/h by car, and the remaining 10 km on foot at 2.5 km/h. Find her average speed for the whole jo...
The distance between two points 'E' and 'F' is 2,100 km. Vikram and Sameer can cover the distance between 'E' and 'F' in 42 hours and 35 hours, respecti...
