Question
In the composition of soil on volume basis
soil water and soil air comprises 50%. What is the percent of mineral matter?Solution
The basic components of soil are minerals, organic matter, water and air. The typical soil consists of approximately 45% mineral, 5% organic matter, 20-30% water, and 20-30% air.
The sum of the earnings of 'D' and 'E' is Rs. 2,20,000. 'D' uses 75% of his income, while 'E' uses 65% of hers, so that 'E's savings are Rs. 17,000 more...
The marks obtained by A is 25% more than B, and the marks obtained by C is 140 more than the difference of the marks obtained by A and B. If C obtained ...
M scored 30% marks in an exam whereas N scored 270 marks in the same exam. If the score of N is 90 marks more than that of M, then find the maximum mark...
X got 32% marks and failed by 96 marks while Y got 58.5% marks and got 63 more marks than passing marks. Determine the total marks in the exam.
Neeraj's earnings decreased by 50% and after that subsequently increased by 50%. Find the final loss % on his earnings.
The marks scored by a boy in three subjects are in the ratio 2 : 3 : 5. Boy scored an overall aggregate of 60% in the exam. If the maximum marks in each...
Two numbers are respectively 30% and 50% more than a third number. First number is approximately how much percent less than the second number?
- If the price of a commodity is increased by 25% and a person reduces his consumption by 20%, find the percentage change in his expenditure.
A company has 1200 employees, with 45% working in operations, 35% in sales, and the rest in HR. During an appraisal cycle, 20% of the operations employe...
Initially, a person spends 80% of his salary and saves the remaining 20%. After receiving a 10% salary increase, his savings remain unchanged, and he sp...
