Question
The product of the two prime numbers is 187. What will
the L.C.M of these two numbers?Solution
We know that, If there are two numbers a and b, Then, a × b = LCM of (a, b) × HCF of (a, b) According to the question a × b = 187 And we know that HCF for two prime numbers is = 1 So,  187 = LCM of (a, b) × 1 ⇒ LCM of (a, b) = 187
The radius of the base of a solid right circular cylinder is 7 cm, and its height is four times the radius of the base. Determine...
The radius of a sphere is 18cm. The surface of the sphere is what percent of its volume.
Suresh started his journey form P to Q by his bike at the speed of 40 km/h and then, the same distance he travelled on his foot at the speed of 10 km/h ...
If the ratio of areas of two circle is 25:36, then the ratio of their circumferences will be:
If a student scores 35% marks, then he is failed by 60 marks but he scores 48% marks he is passed by 96 marks. Find the passing percentage?
A cone has a radius of 5 cm and a slant height of 13 cm. Find the total surface area of the cone.[Take π = 3.14 ]
A square whose diagonal is 12 √2 cm is made base of the pyramid. if height of the pyramid is 18cm, then what is the total surface area of the pyramid....
The volume of a cube is 216 cm³. If the cost of painting the cube is Rs. 12 per cm², then find the cost of painting five faces of the cube.
The speed of two railway engines is in the ratio 5: 4. If they move on parallel tracks in the same direction and if the slower engine is ahead of the f...
A wire is bent to form a square whose sides are of 11 cm. If the same wire is bent to form a circle, then find the area (in cm2) of the circl...