Question

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Answer 1

3) ans)

a) y+10

b) y-2

c) yx6 or, 6y.

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Answer 2

Solution 2 :-

Steps of construction :-

• Draw a line segment AB

• Now, Take the protactor and make an angle of 100°

• The line segment AC and AB both make an angle of 100°

• Now, Take point E and make an arc

• Now, Take point F and make an arc such that both the arc intersect

• The point where both the arc intersect make a line and join that line with point A

• Hence, The line segment bisect ΔA .

Solution 3 :-

1) Let the present age of Preeti's be y years

Therefore,

The age of Preeti's after 10 years from now on

= ( 10 + y) years

2) The age of preeti 2 years back

= ( y - 2 ) years

3) Preeti's grandfather is 6 times the age of Preeti's age

Therefore,

The age of Preeti's grandfather = 6 * Age of preeti

= 6 * y = 6y years $.$