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Given, 4th number:5th number = 2:3 Let, 4th number = 2x 5th number = 3x So, 3x – 2x = 16 Or, x = 16 Required average = {(30 + 16 × 2 + 16 × 3)/5} = (110/5) = 22
Bakelite is a polymer which is used in the manufacturing of buckets and electrical switches. What are the monomers of bakelite?
Which of the following is/are true with respect to Amoeba?
I. It is a multi-cellular organism.
II. It takes in food using temporary finger...
A particle of mass 0.2 kg is rotated in a circle of radius 0.5 m at 4 rad/s. Its centripetal force is:
The ozone hole that has been detected lies in the atmosphere above –
A current-carrying conductor is placed perpendicular to a uniform magnetic field. The force on the conductor is given by:
What is the work done when a force of 20 N moves an object 5 meters?
When hard water is evaporated completely, the white solid remains in the container. It may be due to the presence of
1. Carbonates of Ca and Mg
A car covers a distance of 200 km in 4 hours. What is its average speed ?
Which of the following indicator produces a pink colour in an alkaline solution?
What is the pH level of pure water?
