Question : If A = 2³ ×  3⁷, B = 2⁷ ×  3⁵ and C = 2⁸ × 3⁴, then what is the least common multiple of A, B and C?

Option 1: 2⁷× 3⁷

Option 2: 2⁶ × 3⁷

Option 3: 2⁸ × 3⁷

Option 4: 2⁹ × 3⁷

Question : The sides of a triangle are 6 cm, 8 cm, and 10 cm. What is the area of the triangle?

Option 1: 20 cm²

Option 2: 28 cm²

Option 3: 24 cm²

Option 4: 16 cm²

Question : Find the curved surface area of a cone whose radius of the base is 7 cm and slant height is 8 cm. [Use $\pi=\frac{22}{7}$]

Option 1: 132 cm²

Option 2: 198 cm²

Option 3: 154 cm²

Option 4: 176 cm²

Question : A rectangle has sides of 45 cm and 55 cm. What is the area of this rectangle?

Option 1: 2675 cm²

Option 2: 2475 cm²

Option 3: 2550 cm²

Option 4: 2350 cm²

Question : The value of gas constant R in Ergs deg ^-1 mole^-1 is

Option 1: 8.31410 X 10⁷

Option 2: 8.454 X 10⁷

Option 3: 8.413 X 10⁷

Option 4: 4.183 X 10⁷