Question
Two men started moving in a circular path from the same
place at the same time in the same direction. If they complete one revolution in 12 min and 16 min respectively, then how long will they take to meet again?Solution
LCM of 12 and 16 is 48 They met after 48 minutes because after 48 minutes, first person will complete 4 rounds and the second person will complete 3 rounds. And they will meet at the starting point.
What will be inradius of a right angle triangle whose base is 20 cm & height is 21 cm ?
In ∆ABC, AD = DB , DE is parallel to BC, and the area of ∆ABC is 24 cm2. What is the area of ∆ADE in cm2 ?
If y = 5x + c passes through point A(5, 2), what is the value of c?
...Find out the circumference of a sector whose radius is 7 cm and it makes the angle of 45° at the centre?
If in a right angle triangle ABC, Angle B is a right angle. AB = 20 cm, BC= 21 cm if BD is perpendicular to AC find the length of BD?Â
A solid cylinder has radius of base 14 cm and height 15 cm. 4 identical cylinders are cut from each base as shown in the given figure. Height of small c...
In ∆ABC , G is the centroid , AB = 5 cm, BC= 8 cm and AC = 7 cm , find GD, where D is the mid-point of BC?
The length of the each side of an equilateral triangle is 14√3. The area of incircle, (cm 2 ) is
In the given figure. ABCDEF is a regular hexagon whose side is 6 cm. APF, QAB, DCR and DES are equilateral triangles. What is the area (in cm2
Relevant for Exams:
