Question
After 8 years, the age of Neha will be 6 years less than
2 times of her age, 5 years back. What is Neha’s present age?Solution
Let Neha’s present age be x years. After 8 years, her age will be = x + 8 5 years back, her age was = x - 5 Now according to question, => x + 8 = 2(x – 5) – 6 => x + 8 = 2x – 10 – 6 => x + 8 = 2x – 16 => x = 24 years
The energy that can harness heat stored below the earth's surface is known as –
Two cities are 125 km apart. Electric power is sent from one city to another city through copper wires. The fall of potential per km is 9.6 volt and the...
A 10 μF capacitor is charged to 50 V and then connected across an uncharged 20 μF capacitor. What is the final potential difference across both capac...
How long does an image remain on the retina after the object is removed?
What is the phenomenon of bending of light around corners called? Â
Which of the following rays are not deflected by a magnetic field?
Global warming is expected to result in
A body starts from rest and accelerates uniformly. After t seconds, it covers a distance S. What is the ratio of the distance covered in the first half ...
A sugar solution in a tube of length 2.0 dm produces optical rotation of 12°. Then, the sugar solution is diluted to one half of its initial concentra...
An image formed by a plane mirror is ______.
