Aptitude - Races and Games - Discussion
Discussion Forum : Races and Games - General Questions (Q.No. 5)
5.
At a game of billiards, A can give B 15 points in 60 and A can give C to 20 points in 60. How many points can B give C in a game of 90?
Answer: Option
Explanation:
A : B = 60 : 45.
A : C = 60 : 40.
 |
B | = |  |
B | x | A |  |
= | |
45 | x | 60 | |
= | 45 | = | 90 | = 90 : 80. |
| C | A | C | 60 | 40 | 40 | 80 |
B can give C 10 points in a game of 90.
Discussion:
28 comments Page 2 of 3.
Mahima said:
1 decade ago
I also got the same doubt - how 45/60*60/40 = 90/80?
But now my doubt is cleared
But now my doubt is cleared
Gayathri said:
1 decade ago
How it is possible please send the detail?
Pujan said:
1 decade ago
How it becomes 60/45? Still not cleared.
SHUBHAM MISHRA said:
10 years ago
Sir this question paper is very best.
Rohit said:
10 years ago
Your doubt is 90/80.
Because 40/45*90.
= 8/9*90.
9 divided by 90, answer is 10.
Then, 8*10 = 80.
B give C in a game of 90.
= 90/80. Ratio 90:80.
90-80 = 10.
Answer: B give C 10 points in a game of 90.
Because 40/45*90.
= 8/9*90.
9 divided by 90, answer is 10.
Then, 8*10 = 80.
B give C in a game of 90.
= 90/80. Ratio 90:80.
90-80 = 10.
Answer: B give C 10 points in a game of 90.
Kanna TJ said:
9 years ago
Here 45/40 is for a game of point 60. They asked how many point can B give to C in a game of 90.
So convert B ie. 45 to 90 which is multiply (45 * 2) = 90 multiply by the same with 40 ie 40 * 2 = 80 then we get;
90/80 so B give C 10 points in a game of 90.
So convert B ie. 45 to 90 which is multiply (45 * 2) = 90 multiply by the same with 40 ie 40 * 2 = 80 then we get;
90/80 so B give C 10 points in a game of 90.
Nikitha said:
9 years ago
Good explanation, Thank you @Rohit.
Sweety said:
9 years ago
Thank you all for giving an explanation.
Sharvaree said:
9 years ago
How A : B should be 60 : 45?
Chinmay bhola said:
8 years ago
60-15 = 45
and 60-20 = 40 (remember this time it 60 points ,not a 100 meter race .)
Ratio will be A:B 60:45 and A:C 60:40.
Now B/A*A/C = B/C = B:C = 45/60*60/40 = 9:8 ,so B:C = 9:8
Multiply 10 in both rato, coz it will change nothing
Now it's B:C = 90:80.
90-80=10points , these 10 points B can give C in a game of 90.
and 60-20 = 40 (remember this time it 60 points ,not a 100 meter race .)
Ratio will be A:B 60:45 and A:C 60:40.
Now B/A*A/C = B/C = B:C = 45/60*60/40 = 9:8 ,so B:C = 9:8
Multiply 10 in both rato, coz it will change nothing
Now it's B:C = 90:80.
90-80=10points , these 10 points B can give C in a game of 90.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers