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Cost price of 3 kg of the rice mixture = 18 + 45 × 2 = Rs. 108 Cost price of 1 kg of the rice mixture = 108 ÷ 3 = Rs. 36 So, profit percentage = (45 – 36) ÷ 36 × 100 = 25%
Which physical property is considered dimensionless?
A storm is predicted if atmospheric pressure:
How does an earphone convert electrical signals into sound?
Which device uses ultrasonic waves for getting images of internal organs of human body?
Water gets cooled, when ice is immersed in it, this phenomenon is known as
Who is known as the 'Father of Nuclear Physics'?
Sound of frogs can be heard from a long distance in a rainy season because
Who discovered the electron?
Why does the pole star appear to be fixed in one place while all other stars seem to move from east to west?
Which law describes the relationship between electric current and potential difference?