Ratio and Proportion - Quant/Math - CAT 2009
Question 4 the day:
July 11, 2002
The question for the day is the from the topic - Ratio and Proportion.
- Two cogged wheels of which one has 32 cogs and other 54 cogs, work into each other. If the latter turns 80 times in three quarters of a minute, how often does the other turn in 8 seconds?
| (1) |
48 |
|
(2) |
135 |
|
(3) |
24 |
|
(4) |
None of these |
Correct Answer - (3)
Solution:
Less Cogs => more turns and less time => less turns
|
cogs |
time |
turns |
| A |
54 |
45 |
80 |
| B |
32 |
8 |
? |
Number of turns required = 80  = 24 times
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