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The sounds of frequency less than 20Hz are called infrasonics. The infrasonic sounds have below the lower limit of human hearing. The audible range of human ear is 20 Hz to 20000 Hz. These are called Audible waves. The sound of frequency more than 20,000Hz are called ultrasonics. Ultrasonic sounds have a frequency above the upper limit of human hearing.
A person invested Rs. 75,000 at an annual compound interest rate of 12%, compounded annually for 12 months. How much more profit would he have earned if...
A man wants to invest Rs 20,220 in bank account of his two sons whose age were 12 years and 16 years in such a way that they will get equal amount at ag...
Find the difference between True discount and Simple Interest on Rs. 7200 due after 5 years @ 4% per annum.
If Rohit invested Rs. 16,000 at compound interest of 25% p.a., compounded annually, then interest earned by him in two years would be:
If a sum of Rs. 6,500 is to be borrowed for 2 years at 10% per annum compounded half-yearly, find the compound amount (integer values only).
Ajay invested Rs.a in SI at 5% rate of interest per annum for 8 years. Vishal invested the same amount in SI at 3% rate of interest per annum for 4 year...
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 simple interest on a sum of Rs X in 5 years is 4/5 of the principal. What is the annual rate of interest?