If the arm of a class is reduced by 30%, then how many% decrease in the letter
Will it be?
Answers
Question :
If the arm of a class is reduced by 30%, then how many% decrease in the letter
Will it be?
Solution :
Let each side of the square be = 10 unit
∴ Area of square = Side × Side
= 10 unit × 10 unit = 100 sq.unit
The resulting square arm is reduced by 30% in the side of the square.
= ( 10 - 10 of 30 ℅ ) unit
= 10 - 10 × 30/100 = 10 -3 = 7 unit
∴ Area of the resulting square
= side × side
= ( 7 unit )^2 = 49 sq.unit
Area reduction = ( 100 - 49 ) sq.unit
= 51 sq.unit, That is 51%, Answer
Answer:
Solution :
Let each side of the square be = 10 unit
∴ Area of square = Side × Side
= 10 unit × 10 unit = 100 sq.unit
The resulting square arm is reduced by 30% in the side of the square.
= ( 10 - 10 of 30 ℅ ) unit
= 10 - 10 × 30/100 = 10 -3 = 7 unit
∴ Area of the resulting square
= side × side
= ( 7 unit )^2 = 49 sq.unit
Area reduction = ( 100 - 49 ) sq.unit
= 51 sq.unit, That is 51%, Answer.
Step-by-step explanation:
@Genius