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Due to presence of high amount of exchangeable sodium and high pH, the soil colloids get dispersed and organic matter present in the soil are dispersed and dissolved. When these dispersed and dissolved organic matter is deposited on the surface, it gives alkali soil a dark brown-blackish appearance
The radius of a circle is increased by 20%. Find the percentage increase in the area of the circle.
Neeraj's earnings decreased by 50% and after that subsequently increased by 50%. Find the final loss % on his earnings.
A bag contains 550 coins of 25p denomination and 1100 coins of 50p denominations. If 11% of 25p coins and 22% of 50p coins are removed, the percentage o...
Monthly income of A is Rs. 5500 and he saves 34% of his monthly income. If monthly expenditure of A is decreased by 35% while his monthly savings is inc...
The respective ratio of monthly income of A to monthly income of B is 6:7, and A’s saving is (100/7)% more than B’s saving. Find the expenditure of ...
In an election two candidates participated. 10% voters did not vote. 11(1/9) % votes declared invalid and the winner got 50% of the valid votes. If he w...
The sum of the monthly incomes of ‘A’, ‘B’ and ‘C’ is Rs. 60000 which is 4 times the monthly income of ‘C’. If ‘A’ spends 60% of his...
Rajesh spent 45% of his monthly income on food and 55% of the remaining of study. If total monthly savings (after spending on food and study) of Rajesh ...
The income of ‘A’ increases by 23% every year. If his income 2 years hence from now will be Rs. 18608.67, then find his income a year before from no...