Question
A, B and C started a business. Twice the investment of A
is equal to thrice the investment of B and also five times the investment of C. If the total profit after a year is ₹ 15.5 lakhs, then the share of B in the profit is (in ₹ lakhs):Solution
2A = 3B = 5C L.C.M of 2, 3 and 5 = 30 So, A = 30/2 = 15 ⇒ B = 30/3 = 10 ⇒ C = 30/5 = 6 Total profit = 15 + 10 + 6 = 31 Share of B = (10/31) × 15.5 lakhs ⇒ Rs. 5 lakhs ∴ The share of B is Rs. 5 lakhs
Which law states that the current through a conductor is directly proportional to the voltage across it? Â
The distance- time graph for a body moving at uniform speed is?
________ are the elements of group 18.
If a force is applied to two stationary objects with different masses for the same duration, what will be the same for both objects?
The point where the total mass of a body is considered to be concentrated is known as what?
What is the SI unit of pressure? Â
Which of the following particles in motion, having the same kinetic energy, has the shortest wavelength?
A convex mirror and a concave mirror face each other at a distance of 30 cm. A point object is placed midway. The final image formed by double reflectio...
A soap bubble expands isothermally and its radius doubles. The work done by surface tension during this expansion is:Â
A sound wave has a frequency of 500 Hz and wavelength of 0.68 m. What is the speed of sound?
