Question
If the length of a rectangle is increased by 25% and its
breadth is decreased by 8%, then the area of the rectangle will be increased or decreased by how much percent?Solution
ATQ,
Percentage change in Area = x – y – xy/100 = 25 – 8 – 25 × 8/100 = 17 – 2 = 15% The area of the rectangle will be increased by 15%.
More Mensuration Questions
1500 × 60% of 25% = ? 2
What will come in the place of question mark (?) in the given expression?
{122 + (66/4) + (252/8)} ÷ 8 = (?)1/2
2 X 25 + (30% of 80) ÷ (10% of 120) = ?
289 + 896 + 144 – 25% of 1100 =?
Find the value of the expression:
18 + 12 – 4 × [22 + 6 – 2 × (38 – 23)]{640 of 8 - (12)2 of 6} - 900 = ?
What will come in place of (?) in the given expression.
√625 + 12 × 5 = ?666(2/3)% of 30 - 116(2/3)% of 90 =?
What will come in the place of question mark (?) in the given expression?
40% of 150 - ?% of 75 = 15 × 1.6
6 × 5.5 + 4.5 × 20 - 102 = ?
