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The energy 1 kilowatt-hour (kWh) is 3600000 joules or 3.6 mega joule. In physics, energy is an indirectly observed quantitythatisoftenunderstoodastheabilityof a physical system to do work on other physical systems.However,thismustbeunderstoodasan overly simplified definition, as the laws of thermodynamicsdemonstratethatnotallenergy can perform work.
Rs. 2400 is deposited into scheme 'A' offering a simple interest rate of 25% per annum over a period of 8 years. Simultaneously, Rs. 2500 is placed in s...
A certain sum on compound interest becomes 56,180 when compounded annually after 2 years and 59,550.80 after 3 years Find the sum.
The compound interest (compounded annually) on Rs 8200 for 2 years at R% p.a is Rs 1722. Had the rate of interest been (R+10)% p.a what would have been ...
'P' invested Rs. 2,00,000 at compound interest of ___% p.a., compounded once every 4 months. If he kept the amount invested for 12 months, then interest...
Ravi invests Rs. 2,000 on simple interest at 'a%' p.a. for 4 years and earned an interest of Rs. 800. His friend Vinay invests Rs. 4,800 on simple inter...
A certain sum of money becomes 4000 in 6 years and Rs. 5000 in 10 years at any certain rate of simple interest. Find the principal amount.
What sum of money must be given at simple interest for 3 months at 5% per annum in order to earn Rs. 220 interest?
How much time will it take for an amount of Rs.2000 to yield Rs. 640 as interest at 8% p.a. of SI?
Rs. 5000 when invested at simple interest of r% p.a. amounts to Rs. 6000 in 24 months. If the same sum had been invested for 1 year at compound interest...
The interest earned when a sum is invested at simple interest of 20% p.a., for 3 years, is Rs. 1500. What will be the total amount received after 2 year...
