Explanation:

Given , cost of each sheep =rs 120. 

 Total no of sheep =X=60.

Total cost price =120×60 =rs 7200

Now given ,

Selling of each sheep =rs 150 

Total no of sheep y1=40.

Total selling price of y1 =150 ×40=rs 6000.

Also given No of remaining sheep =10 

Profit =sp -cp 

Given profit =rs 800 now find the total selling price 

Total selling =profit +c.p

 =800+7200 =80

Let the s.p be y3

Then total sp =y1 +y2 +y3

Here y2=0 {sheep died}

8000=6000+0+y3

Y3=8000-6000=rs 2000

Sp of 10 sheep's be rs 2000

Sp of 1 sheep be rs 2000/10 =rs 200.

Hence, option 2 is the correct answer.