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A rectifier is a device that converts alternating current (AC) into a direct current (DC) and the process is called rectification.
Out of four numbers the average of the first three is 16 and that of the last three is 15. If the last number is 20 then the first number is
If X + Y = 23 and XY = 126, what is the value of (X)² + (Y)² ?
The sum of the digits of a two-digit number is 12, and the tens digit is twice the units digit. Determine the HCF of this number ...
When N is divided by 5 the remainder is 2. What is the remainder, when n³ is divided by 5?
The value of a machine depreciates every year by 12%. What will be its value after 2 year if its value is Rs 19,650?
Sum of squares of three consecutive numbers is 677. Find the sum of first and third number.
If a cube of a number is subtracted from (153)², the number so obtained is 1457, Find the number.
Find the average of first 23 whole numbers.
