Question

plz answer the ncert 2.2 16th question

Answer 1

Ahoy !
_______________________________
Let the no of winners = w
Let the no of participants don't win = z

Case 1 :
w+ z = 63
z = 63 - w _________________ [ a ]
_______________________________

Case 2 :

100w + 25z= 3,000 __________ [ b ]
_______________________________

put the value of z in eq [ b ]

100w + 25 ( 63 -w ) = 3, 000

100w + 1575 - 25w = 3, 000

75w = 3,000- 1575

75w = 1,425

w = 1425 / 75

w= 19
_______________________________
The no of winners are 19 .
---------------------------------------------------------

I wish you get it . : ]