Question : What will be the ratio of the Least Common Multiple and Highest Common Factor of 12, 24, and 36?

Option 1: 3 : 1

Option 2: 4 : 1

Option 3: 6 : 1

Option 4: 2 : 1

Question : What is the Least Common Multiple of 10,12, and 15?

Option 1: 120

Option 2: 180

Option 3: 60

Option 4: 30

Question : The sum of the lengths of the radius and the diameter of a circle is 84 cm. What is the difference between the lengths of the circumference and the radius of this circle? [Use $\pi=\frac{22}{7}$]

Option 1: 156 cm

Option 2: 172 cm

Option 3: 148 cm

Option 4: 128 cm

Question : The product of the two numbers is 38025 and their highest common factor is 65. What is the least common multiple of these numbers?

Option 1: 455

Option 2: 585

Option 3: 715

Option 4: 435

Question : The lengths of the three sides of a triangle are in the ratio of 2 : 2 : 3. If the perimeter of the triangle is 42 cm, then what is the length of the largest side?

Option 1: 12 cm

Option 2: 18 cm

Option 3: 20 cm

Option 4: 15 cm