Aptitude - Clock - Discussion
Discussion Forum : Clock - General Questions (Q.No. 7)
7.
At what time between 5.30 and 6 will the hands of a clock be at right angles?
Answer: Option
Explanation:
At 5 o'clock, the hands are 25 min. spaces apart.
To be at right angles and that too between 5.30 and 6, the minute hand has to gain (25 + 15) = 40 min. spaces.
55 min. spaces are gained in 60 min.
| 40 min. spaces are gained in |  |
60 | x 40 |  min |
= | 43 | 7 | min. |
| 55 | 11 |
 Required time = 43 |
7 | min. past 5. |
| 11 |
Discussion:
76 comments Page 5 of 8.
Pavansairam said:
1 decade ago
If theta = 90 and you go for 1st(b/w 5.30 to 6.00 etc problems).
If theta = 180 you go for 2nd.
If theta = 180 you go for 2nd.
Diksha Mishra said:
5 years ago
Please, someone, share the solution of how come40*60÷55 = 7÷11 came ? Pls someone explain it..
Mounika said:
9 years ago
I was getting confused in using the formula.
But your answer helps me, Thankyou @Prashanth.
But your answer helps me, Thankyou @Prashanth.
Jonas palmiano said:
1 decade ago
What time after 4 o'clock will the hands of the clock be at right angle? Please help.
Prithish said:
1 decade ago
Instead of only taking 25+15 we can also take 25-15, that will also be a right angle.
Jeyamani said:
1 decade ago
Actually the question is between 5.30 & 6.00. But you have taken from 5.00. Why?
Sonam said:
7 years ago
Can you explain me the calculation of 43 7/11 min how it comes from (60/55*40) min?
(1)
ABI said:
5 years ago
55min spaces are gained in 60min. What it is, Can someone explain to me this?
(1)
Palikila Sridevi said:
1 decade ago
Please explain me briefly how.
"55 min. Spaces are gained in 60 min" came.
"55 min. Spaces are gained in 60 min" came.
Babu said:
5 years ago
55min spaces are gained in 60min. What it is, Can someone explain to me?
(4)
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