Question
Who discovered the cell for the first
time?Solution
Robert Hooke first discovered cells in 1665 when he observed cork cells under a microscope. (A) Anton van Leeuwenhoek: he improved the microscope and observed microorganisms. (B) Rudolf Virchow: he proposed that all cells arise from pre-existing cells.
If a sum when placed at compound interest grows to Rs.6,400 in 2 yrs and to Rs. 8,000 in 3 yrs, find the rate percent p.a.
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"R" made certain investments with a 40% annual compound interest rate that is compounded quarterly. If, 9 months later, he receives Rs. 1,99,650, then t...
A certain sum of money invested at R% p.a. fetches a compound interest (compounded annually) of 1560 and simple interest of Rs.1500 at the end of 2 year...
A certain sum of money will be doubled in 2 years at the rate of simple interest percent per annum is:
A man deposited Rs. 12000 at 10% compound interest, compounded annually while Rs. 10500 at 13% simple interest per annum. What will be the difference be...
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