Question

ans this
questions with explanation

Answer 1

First question:

piece of rope obtained =65/2÷13/4
=65/2×4/13
=10 pieces

Second question :

Let the area of land be x.
Man sold = 1/2x
Remaining portion =x-1/2x
=x/2
Portion given to his son=1/2 of x/2
=1/2× x/2
=x/4
Portion given to his daughter =1/3 of x/2
=1/3 × x/2
=x/6
Left land with him =x-(1/2x+x/4+x/6)
=x-11x/12
x/12

If u like my answer plz mark as brainliest

Answer 2

12. Length of rope = 65/2 m.
length of piece which was cut = 13/4
let 'y' pieces be cut.
⇒ 13/4 × y = 65/2
⇒ y = 65/2 × 4/13 
⇒ y = 10

13. If the man has 'x' amount of land.
Sold portion = x/2
Portion given to son = x/2 × 1/2 = x/4
Portion given to daughter = x/2 × 1/3 = x/6
Remaining portion = x - x/2 - x/4 - x/6
                              = x/12
∴ 1/12 portion of his land is remaining with him.