Verbal Reasoning - Arithmetic Reasoning - Discussion
Discussion Forum : Arithmetic Reasoning - Section 1 (Q.No. 2)
2.
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 are the fares for cities B and C from A ?
Answer: Option
Explanation:
Let Rs. x be the fare of city B from city A and Rs. y be the fare of city C from city A.
Then, 2x + 3y = 77 ...(i) and
3x + 2y = 73 ...(ii)
Multiplying (i) by 3 and (ii) by 2 and subtracting, we get: 5y = 85 or y = 17.
Putting y = 17 in (i), we get: x = 13.
Discussion:
49 comments Page 3 of 5.
Rashid said:
9 years ago
Can anybody explain to me why we are multiplying I and ii equations with 3 and 2 respectively? Where these 3 and 2 comes from.
Pvk said:
1 decade ago
Antony method super and correct substitute the x, y value in 1, 2 equation. Only 13, 17 satisfying.
Russ said:
9 years ago
I don't understand how you got 2 and 3? Where does the 2 and 3 come in place? Please explain it.
Jennie said:
5 years ago
Why should we multiply the first equation and the second equation with 3and 2? please explain.
(9)
Umar said:
8 years ago
2x+3y=77-->(1)
3x+2y=73-->(2)
73(2x+3y)=77(3x+2y),
146x+219y=231x+154y,
65y=85x,
13y=17x.
3x+2y=73-->(2)
73(2x+3y)=77(3x+2y),
146x+219y=231x+154y,
65y=85x,
13y=17x.
(12)
Charan said:
1 decade ago
Why Should we multiply 2x+3y = 77 with 3 and the second one with 2?
Can anyone explain?
Can anyone explain?
Dazedandconfused said:
1 decade ago
For some reason, this seems complicated to me. What is the purpose of these tests?
Bujji said:
1 decade ago
It is wrong antony. In options 17 and 13 is also there. So your method is wrong.
TUSHAR KANTI DAS said:
9 years ago
Your solution is awesome. I got it easily through your process, Thanks @Satwant.
Jitendra said:
1 decade ago
New method by @Antony is really good and a short-cut way to find the solution.
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