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Methane (CH₄) is the simplest hydrocarbon, consisting of one carbon atom and four hydrogen atoms connected by single bonds.
The average weight of 4 persons is 38 kg. The heaviest person’s weight is 22 kg more than the lightest person’s weight. If the average weight of the...
Average run scored by a batsman in 14 innings is 80. In next 6 innings, he scored runs with an average of ‘x’ so that his overall average increases ...
60% of 3840 +? + 30% of 4380 = 40% of 8340 + 10% of 3480
Average of 20 numbers is 90. Average of first 8 numbers is 92 while average of last nine numbers is 40. If ninth number is 25% less than the tenth numbe...
A and B started a business investing Rs. 1500 for ‘x’ months and Rs. 1800 for 10 months, respectively. Out of total profit of Rs. 5000, profit shar...
The average age of 18 children and their teacher's age are 15 years. If the teacher's age is excluded, the average reduces by 2. What is the teacher's age?
The batting average for 40 innings of a cricket player is 50 runs. His highest score exceeds his lowest score by 172 runs, If these two innings are excl...
The average salary of all males and females in an office is Rs.16000 and the total number of females in the office is 16. If the average salaries of mal...
When the average age of a husband and wife and their son was 44 years, the son got married and a child was born just one year after their marriage. When...