What is the chemical name of laughing gas?
Nitrous oxide (N2O) is called “laughing gas” because it has a euphoric effect when inhaled. It has a mildly sweet odor and taste. N2O was first synthesized by J. Priestley in 1772.
Arvind's age after 19 years will be 67 years. Ravi is 4 years older than Arvind. The ratio of present ages of Samar and Ravi is 9:13. Find the age of Sa...
If x varies inversely as (y2 – 1) and is equal to 40 when y = 5 then the value of x and y = 7 is
If the numerator of a fraction is increased by 300% and the denominator is increase by 600%.The resultant fraction is 1/2. What was the original fraction?
A Student was asked to add 8 and subtract 5 from a number. By mistake, he added 5 and subtracted 8. If his answer is 11, what should be the correct answer?
When 1062, 1134 and 1182 are divided by the greatest number x, the remainder in each case is y. What is the value of (x – y) ?
If the largest three – digit number is subtracted from the smallest five – digit number, then the remainder is
The largest three-digit number which gives the same remainder 3 when divided by 4, 9, 6 is:
When a number is increased by 20% then the number obtained is 36 less than thrice the original number. Find the original number.
