10 c + 26 a = 740
but a = 50 - c
so
10 c + 26 (50 - c) = 740
-16 c + 1300 = 740
16 c = 560
c = 35
Ticket rate for the science exibition is 10rs for a child and 26 rupees for an adult. 740 rupees was got from 50person. How many children among them?
5 answers
No of children = 50-x
No of adult = x
10x + 26[50-x] = 740
= 10x + 1300 - 26x = 740
10x - 26x + 1300 = 740
-16x + 1300 = 740
16x = 1300 - 740 = 560
16x = 560
x = 560/16 = 35
x = 35
No of children = 35
No of adult = x
10x + 26[50-x] = 740
= 10x + 1300 - 26x = 740
10x - 26x + 1300 = 740
-16x + 1300 = 740
16x = 1300 - 740 = 560
16x = 560
x = 560/16 = 35
x = 35
No of children = 35
No of children = 50-x
No of adult = x
10x + 26[50-x] = 740
= 10x + 1300 - 26x = 740
10x - 26x + 1300 = 740
-16x + 1300 = 740
16x = 1300 - 740 = 560
16x = 560
x = 560/16 = 35
x = 35
No of children = 35
No of adult = x
10x + 26[50-x] = 740
= 10x + 1300 - 26x = 740
10x - 26x + 1300 = 740
-16x + 1300 = 740
16x = 1300 - 740 = 560
16x = 560
x = 560/16 = 35
x = 35
No of children = 35
35 children
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