Question

In a charity show tickets were sold at Rs. 180 for 1st class, at Rs. 120 for 2nd Class .
and at Rs. 60 for general enclosure. The number of seats in general enclosure was
double of that in the first class and the number of seats in 2nd Class was triple of
that in the first class. If all seats were occupied except 20 seats in the 1st Class and
the show fetched Rs 62,400. Find the number of persons who attend the show?
a) 100
b) 600
c) 1020
d) 580​

Answer 1

Answer:

580

Step-by-step explanation:

f =first class,2f= general, 3f= second class

((f-20)180) + (2f*60) + (3f*120) = 62400

180f - 3600 + 120f + 360 f = 62400

660f = 66000

f= 100

100+200+300= 600

600-20 = 580