Question
Who is recognized as the “Father of Soil Science”
and “Father of Modern Pedology”?Solution
Dokuchaev is credited as the “Father of Soil Science” and “Father of Modern Pedology” for his work on soil classification and the zonality concept. Jenny focused on soil formation equations, Liebig on agricultural chemistry, and Graham on colloids.
If 64% of (P - Q) is equal to 20% of 80% of (P + Q), then find the value of Q:P.
- Vikram spent 10% of his income on investments and out of the remaining amount, he spent 35% on house rent, 30% on maintenance, 15% on groceries, and saved ...
There are 100 students in a particular class. 60% students play cricket, 25 % play football and 15% play both the games. What is the number of students ...
A candidate who gets 25% marks fails by 12 marks but another candidate who gets 45% marks gets 10% more than the passing marks. Find the maximum marks.
Riya scored 36% in her exam and failed by 48 marks, while Sneha got 51% and passed by 72 marks. What were the maximum marks in the exam?
A person spent 12.5% of his monthly income on food and 32% of the remaining on rent. If amount spent on rent is Rs 1512, then find the amount spe...
The salary of a man increased from Rs. 16000 per month to Rs. 18000 per month. Find the increase percent.
- Sneha spent 18% of her income on donations and out of the remaining amount, she spent 22% on household expenses, 28% on shopping, 12% on transportation, an...
‘X’ owns 40% less pens than ‘Y’. ‘Y’ owns 50% more pens than ‘Z’. By what percentage are the pens with ‘X’ less than those with ‘Z...
Suyash have total amount of Rs.3000 out of which, he spent 25% on food, 40% of the rest on travelling. Out of remaining amount he spends Rs.620 on misce...