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Two bus tickets from city A to B and three tickets from city A to C cost Rs 77; but three tickets from city A to B and two tickets from city A to C cost Rs 73. What is the fare for city C from A?
A- Rs 13
B- Rs 23
C- Rs 15
D- Rs 17
Read Solution (Total 6)
-
- 2ab+3ac=77----eq1
- 9 years agoHelpfull: Yes(0) No(0)
- ANSWER 17 RS
- 9 years agoHelpfull: Yes(0) No(0)
- 2AB+3AC=77 ---->1
3AB+2AC=73 ---->2
equating 1 & 2 we get
AC=17 - 8 years agoHelpfull: Yes(0) No(0)
- C-RS.15.
let x=fair from city A to B
let y=fair from city A to C
now, according to question,form equations
2x+3y=77
3x+2y=73
solving this equations simultaneously we get the ans
x=15 & y=15 - 8 years agoHelpfull: Yes(0) No(0)
- Let AB=x , AC=y
So,
2x+3y=77 ---->1
3x+2y=73 ---->2
Equating 1 & 2 we get
y=17
Then the fare for city C from A is 17
- 8 years agoHelpfull: Yes(0) No(0)
- 2ab+3ac=77;3ab+4ac=73;
==>5ac=85;
==>1ac=17 - 8 years agoHelpfull: Yes(0) No(0)
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