For the following questions answer them individually
An assertion and a reason are given below.
Assertion: Water is essential for life.
Reason: It is formed using three parts of Hydrogen and one part of Oxygen.
Choose the answer.
If "$$\div$$" denotes "multiplication", "$$-$$" denotes "addition", "$$+$$" denotes "division" and "$$\times$$" denotes "subtraction", then which of the following is the value of the expression
$$19 \div 9 \times 51 - 171 + 19 $$
The Hubble Space Telescope, which belongs to , captured the first-ever predicted supernova explosion.
Which is the correct ascending order of the given numbers?
Which instrument does Dr. L. Subramaniam play?
Among, the democratic countries of the world, which country's constitution is the lengthiest and most detailed?
Monal Kumar travelled equal distance with speed of 3 km/hr, 5 km/hr and 8 km/hr and takes a total time of 39.5 minutes. Find the total distance in km.
If "$$-$$" and "$$\times$$" signs as well as "7" and "3" are interchanged, then which of the one following is correct?