Friday

January 30, 2015

January 30, 2015

Posted by **ASDFG** on Thursday, July 19, 2012 at 11:02am.

- MATHS -
**Reiny**, Thursday, July 19, 2012 at 2:36pmthe way I understand the wording .....

new length/20 = 3/2

new length = 30

new width/10 = 7/3

new width = 70/3

new area = 30(70/3) = 700

old area = 20(10) = 200

increase = 500

percentage increase = 500/200 * 100% = 250%

- MATHS -
**Ruby Siaosi**, Wednesday, January 16, 2013 at 7:53pmherefore, new area of rectangle = xy

Original area = 20 × 10 = 200 cm2

Therefore, increase in area of rectangle = new area of rectangle - original area = 700 cm2 - 200 cm2 = 500 cm2

Now, percentage increase in area

**Answer this Question**

**Related Questions**

Math - Two sides of rectangle are 20 cm &10 cm. They are increased in ratio 2:3...

algebra - The sides of an rectangle was 5cm by 9cm. When both dimension were ...

Maths - A rectangle has legth & width in the ratio of 3:2.If the length is ...

maths - The length and breadth of a rectangle are (3x - 4y) and (2x - 3y) units ...

maths - A rectangle has length & width in the ratio of 3:2.If the length is ...

mat117/algebra - If the sides of a square are increased by 3 cm, the area is ...

math - a rectangle is twice as long as it is wide. if both of its dimensions are...

Math - If the width of a rectangle is increased by 2 inches, the area is 140 ...

Math - How might you find the perimeter and area of rectangle that is increased ...

math - If the length of a rectangle is increased by 25%, by what percentage ...