Question

A and B are two fixed points 5 cm apart and C is a point on AB such that AC is 3cm. if the length of AC is increased by 6%, the length of CB is decreased by​

Answer 1

Answer :

The Decreased in the length of CB is by 0.18 cm or 9%

Step-by-step Explanation :

Given : AB = 5 cm

AC = 3 cm

If AC is increased by 6 %

To find : length of CB is decreased by = ?

AB =5 cm & AC = 3 cm.

So,

CB = AB - AC = ( 5 - 3 ) cm = 2 cm

New length of AC = ( 100 + 6 )% of 3 cm,

= 106 / 100 × 3

= 318 / 100

= 3.18 cm.

New length of CB = ( 5 - 3.18 ) cm = 1.82 cm

Decrease in length of CB = ( 2 - 1.82)cm = 0.18 cm.

decrease % = 0.18 / 2 x 100 % = 9%.

Answer 2

the answer is 9percent..