Answer:
easy peasy (again)
Step-by-step explanation:
given is that, area of the larger one is 25 times more than the smaller one
so, just put it in the area formula,
let the radius of the larger circle be represented by = R
and of the smaller circle be = r
then, (pi) (R)^2 =25 x (pi) (r)^2
=> dividing the equation by pi on both sides, also taking square root on both sides
=> R = 25 r
that would be the radius of the larger circle is 25 times bigger than the smaller radius
(all u need is to pay attention to the data given in the question and the relation between all that data itself) then it'll look like magic of how the question gets solved...the answer is always in front of you, only thing is to look harder ...good luck with what you are aiming to achieve
Answer:
The correct answer is 15 cm.
Step-by-step explanation:
Let the width of the required poster be a cm.
We need to have a 6 cm margin at the top and a 4 cm margin at the bottom. Thus total margin combining top and bottom is 10 cm.
Similarly total margin combining both the sides is (4+4=) 8 cm.
So the required printing area of the poster is given by {( a-10 ) × ( a - 8) } 
This area is equal to 125 as per as the given problem.
∴ (a - 10) × (a - 8) = 125
⇒ 
- 18 a +80 -125 =0
⇒ - 18 a -45 = 0
⇒ (a-15) (a-3) = 0
By law of trichotomy the possible values of a are 15 and 3.
But a=3 is absurd as a 
4.
Thus the required answer is 15 cm.
Answer:
Bottom left
< means that it's dashed line
Answer:
work is shown and pictured
