A string of certain length is cut at random at two points . Find the probability that the result can be three sides of a triangle.Anyone tell how to approach such questions(Ans is 1/4)
see the file attached.
Ramu and Hari, working for 8 hours a day, can independently do a piece of work in 15 days and 12 days respectively. They work in shifts - 8:00 a.m. to 1:00 p.m. (morning shift) and 2:00 p.m. to 5:00 p.m. (afternoon shift). On the first day Ramu works in the morning shift while Hari works in the afternoon shift. On the second day, Hari works in the morning shift and Ramu works in the afternoon one. This pattern of alternating shifts continues till the work is completed. When does the work get completed?
ANS:14 th day
Pls provide explanation
How to solve question related to "truth teller", "lier" & "alternator"... How to approach...
Side of the square = 2 cm
What is the radius of the smaller circle?
P.S : No OA. Please dicuss the approach
The distance between two cities P and Q is 180 km. Two friends A and B,with their speed ratio as 1:3, start from P for Q at 6 am and from Q for P at 7 am respectively. They meet at a point R. After meeting at R, they return to their initial positions and start travelling again towards each other. In order to meet A at R again, B waits at point R for sometime. How long does B have to wait for A?
a) 1 hr b) 1.5 hr c) 2 hr d) 3 hr d) None of these
Anil takes 1 step/sec and moves up 5 steps and then moves down 2 steps. On a stationary escalator, he takes 213 sec to reach the top. On a moving escalator, he takes 70 sec to reach the top. What is the speed of the escalator (in steps per sec)?
number of ways by which sum of n consecutive integers comes out to be 7!
N= (323232.......50 digits)9.ie.in base 9. Find the remainder when N is divided by 8. .??
plz also post the solution
Side of the square = 2 cm
What is the radius of the smaller circle?P.S : No OA. Please dicuss the approach
Please refer to the figure attached. For the right triangle marked in red we can write
Base = (1-r) [radius of bigger circle = 1]
Height = (2-r)
Hyp = (1+r)
Now use Pythagoras theorem (1-r)^2 + (2-r)^2 = (1+r)^2
2r^2 -6r+5 = r^2 + 2r + 1
=>r^2 -8r + 4 = 0
=> (8-rt(48))/2 = 4-2rt(3)
ATDH.
q quadrilateral abcd is isosceles trapezium. if ab=cd and ad=45 cm, bc=125 cm find the value of diameter of the circle inscribed in trapezium
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Q4
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A circle is inscribed in a square .In the gap between square and circle (at the corner )a rectangle measuring 20cm*10cm is drawn such that the corner A of rectangle is also a point on the circumference of the circle.what is radius of circle in cm ?
Two riders on the horseback with a gun and a bullet proof shield were moving towards each other at a constant speed of 20 km/h and 5 km/h respectively. When they were 100 km apart, they started firing bullets at each other at the speed of 10 km/h when a bullet of rider 1 hits the shield of rider 2, rider 2 fires a bullet and the process continues vice versa. Neglecting the time lag at the instant when the bullet hits the shield and the rider fires the shot, find the total distance covered by all the bullets shot by both the riders .(a) 50 km (b) 40 km (c) 25 km (d) None of these
Two riders on the horseback with a gun and a bullet proof shield were moving towards each other at a constant speed of 20 km/h and 5 km/h respectively. When they were 100 km apart, they started firing bullets at each other at the speed of 10 km/h when a bullet of rider 1 hits the shield of rider 2, rider 2 fires a bullet and the process continues vice versa. Neglecting the time lag at the instant when the bullet hits the shield and the rider fires the shot, find the total distance covered by all the bullets shot by both the riders .(a) 50 km (b) 40 km (c) 25 km (d) None of these
40 KM
A group of soldiers are marching with a speed of 5 m/s. The distance between the first and the last row of soldiers is 100 m. A dog starts running from the last row and moves towards the first row, turns and comes back to the lat row. If the dog has travelled 400 m . then the speed of the dog is
The number of solutions to the equation x(e)^sin x = cos x in the interval x ∊ (0, π/2) is:
Solution please.
- 2
- 1
- 3
- 0
0 voters
find the side of the largest square that can be inscribed in the hexagon of side 3.