Mass selection: In mass selection a large number of plants of different desirable phenotypes are selected and their seeds are mixed together to constitute a new variety. The plants are selected on the basis of their appearance or phenotype. The population obtained from the selected plants would be more uniform than the original population. Applications of mass selection: · Improvement of local varieties. · Purification of existing pure line varieties.
A shopkeeper marked an article ‘A’ 60% above the cost price and sold it for Rs. 2016 after giving a certain discount while he sold an articl...
Rs. 9500 is invested in scheme ‘A’ for 3 years and Rs. 8000 is invested in scheme ‘B’ for 2 years. Scheme ‘A’ offers simple interest of 16% ...
Ajay invested Rs.a in SI at 7% rate of interest per annum for 9 years. Vishal invested the same amount in SI at 5% rate of interest per annum for 3 year...
Anjali invested Rs.10000 in a scheme offering compound interest of x% p.a. compounded annually. If at the end of 2 years, interest received by her from ...
A certain sum of money will be doubled in 25 years at the rate of simple interest percent per annum is:
The interest received by investing Rs. 2500 for 2 years at compound interest of 20% p.a., compounded annually, was re-invested for 3 years at simple int...
A certain sum of money becomes 4500 in 6 years and Rs. 5500 in 10 years at any certain rate of simple interest. Find the principal amount.
Arjun made two investments: the first was Rs. 1,600 at an annual simple interest rate of R% for a period of 2 years, and the second was Rs. 2,000 at an ...
A&B invested their sum in the ratio of 22: 25. Respectively. In two different schemes. Offering simple interest of 15% per annum and compound interest o...
If Rs. 4000 becomes Rs. 5760 in 2 years at compound interest (compounded annually), then what is the annual rate of interest?
