Step-by-step explanation:
Let the sum of rupee be x
 no of boys be y
then each boy get x/y
now if the no of boys increased by 10 each boy get x/(y+10) = (x/y)-1 => x/(y+10) = (x-y)/y .........(1)
now case 2nd if no of boys decrease by 15 each boy get x/(y-15)= (x/y) +3 => x/(y-15) = (x+3y)/y ...........(2)
 
        
             
        
        
        
Answer:
11307.19 rounded and exact is 11307.1875
Step-by-step explanation:
 
        
                    
             
        
        
        
C and E and F are all the correct answers
        
                    
             
        
        
        
Answer:
74.82
Step-by-step explanation:
48+38=86       86 X  0.87= 74.82