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Find LCM of the 5, 10, 15, 20.

Answer: The Least Common Multiple(LCM) is a method to find the smallest common multiple between any two or more numbers.... View Article

Here the first six multiples of 5 are 5,10,15,20,25 and 30 We know that n=6 So Mean=(5+10+15+20+25+30)/6 = 105/6 =... View Article

Length and breadth of a rectangle = Directly proportional Length of the rectangle (L1) = 6cm Length of the rectangle... View Article

To determine the volume of a sphere, we use the formula 4/3πr3 To find the volume of a hollow sphere,... View Article

A square matrix such that the matrix power for a positive integer is called a periodic matrix . If is... View Article

Answer: An algebraic expression in mathematics is an expression that is made up of variables and constants, along with algebraic... View Article

Given: 120 , 80 , 40 , 45 , ? , 5 This series is the combination of two different... View Article

We have to find the square root of 15625 by division method First of all group the digits into pairs... View Article

A composite number is a number with at least 3 factors. From number 1 we can check whether the number... View Article

Let x be distance between Rajesh’s home and office. Distance travelled by Rajesh is given as – x = 4x/5... View Article

Let ABC be a right-angled triangle. Since , the perimeter of a right triangle = 60 cm AB + BC... View Article

The Curved surface area of cuboid is the sum of the areas of its six faces. The surface area is... View Article

We have to find the next number in this series 198, 194 , 185 , 169, ? 198 – (2)²... View Article

Euclid’s division lemma : Let a and b be any two positive integers . Then there exists two unique whole... View Article

Given (x-5)/2 – (x-3)/5 = 1/2 Now by taking L.C.M for 5 and 2 is 10 (5 ( x –... View Article

The numbers 1 and −1 are their own reciprocals . It is known that there is no rational number which... View Article

Let us assume the principal or sum be X And we know that Amount = Principal + interest The equation... View Article

If P be any sum and r% be its rate of Interest per annum for t years, then interest in... View Article

The HCFs are 7, numbers are divisible by 7 and are of the form 7x and 7y Difference = 14... View Article

Answer: The work done by Jagdish in one day = 1/10 The work done by Narender in one day = 1/12... View Article