Question
Piyush bought 18 notebooks for Rs.1220 from shop A and
14 notebooks for Rs.860 from shop B. What is the average price he paid per book?Solution
Total money paid for 32 notebooks = Rs. (1220 + 860) = Rs. 2080  ∴ Average price paid per notebook = Rs. (2080/32) = Rs.65
Which of the following statements about the centre of mass (COM) of a system is always true?
Trans fats are considered unhealthy because they:
Which of the following statement is correct?
I. Speed of sound in steel is more than the speed of sound in glass.
II. Speed of sound ...
A satellite is orbiting Earth at a height where acceleration due to gravity is 5 m/s². If radius of Earth is 6400 km, what is the orbital radius?
Which of the following statements is/are correct?
1. Amnion contains fluid.
2. Ultrasound scan can detect the sex of an embryo.
Sel...
A sulphide ore is converted into metal oxide by which of the following process?
Which gas is most abundant in the Earth’s atmosphere?
The autonomic nervous system controls which of the following?
Which of the following terms does not represent electrical power in a circuit ?
Biogas which is used for cooking purpose is a mixture of which of the following two components?
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