Question
The circumference of a circle is 2Ï€ Â cm. Then the
area of a square inscribed in the circle isSolution
2πr = 2 π ⇒ r = 2π /2π ⇒ r = 1 cm Diameter of the circle = 2 cm Diameter of the circle = Diagonal of the square = 2 ∴ Area of the square = 22/2 = 4/2 = 2 cm2
A Scooty is currently traveling at a speed of (2a – 90) km/hr, and a Bus is moving at a speed of (b + 30) km/hr. If the Scooty's speed were equal to t...
A Truck travel 300 km in 7 hours 30 minutes, if the speed of Bike 20% more than that of Truck, then find the time taken by Bike to travel 720 km.
- 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...
A,B and C run around a Circular track starting from the same point simultaneously and in the same direction at the speed of 16 kmph, 24 kmph and 32 kmph...
A person walks at a speed of 'y' km/hr. After 1 hour, they increase their speed to (y + 10) and walk for another 4 hours. If the ratio of the distance c...
A train overtakes two persons walking along a railway track. The first one walks at 3.2 Km/h. The other one walks at 4.5 Km/h. The train needs 5.5 and 5...
B starts 4 minutes after A from the same point, for a place at a distance of 7 miles from the starting point. A on reaching the destination turns back a...
Two cyclists, ‘P’ and ‘Q’, started from locations ‘L’ and ‘R’ towards each other at the same time. When they met after 4 hours, cyclist ...
Two men start together to walk a certain distance, one at 4 km/h and another at 3 km/h. The former arrives half an hour before the latter. Find the dist...
A car travels at a speed of 60 km/h for the first 2 hours, then at 80 km/h for the next 3 hours, and finally at 100 km/h for the last 1 hour. What is th...
Relevant for Exams:
