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Rohit Y.

Tutor for 6 year

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Basic Math

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Question:

How to calculate percentage. Find the 25% of 7500

Rohit Y.

Answer:

We can define percentage as a fraction of total value of quantity, it is represented by % sign % sign means 100, example 13 % it means 13/100 solution 7500*25/100 =75*25 =1875

Electrical Engineering

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Question:

convert given binary number into the octal code 111000101

Rohit Y.

Answer:

binary mean two digit 0 and 1 and octal is 8 means 2^3 here exponent 3 indicates a group of three bit now the solution make a three-bit group from right to left and write it an equivalent decimal number 101=5 000=0 111=7 so the result is (705)

Algebra

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Question:

find the solution of given equation x² – 14400 = 0

Rohit Y.

Answer:

as we know that the standard quadratic equation ax² + bx + c = 0 Here a=2, b=-14400, c=0 so a solution in a simple form x²=14400 x=sqrt(14400) so the square root of 14400 is 120 so the final solution of above quadratic equation is x=±120

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