A can swim & cross 50m(the length of swimming pool) in 2
min. B can swim & cross 50m in 2min 15sec. Every time when
they meet a bell gong is struck. For 2000m how many bell
sounds might be produced?
Answers were Sorted based on User's Feedback
Answer / julia jeni
A swims 50mts in 2mins*60=120secs;
B swims 50mts in 2.15mins*60=135secs;
To swim 2000mts, 50mts*40times=2000mts;
so A swims for 120secs*40times=4800secs;
so B swims for 135secs*40times=5400secs;
The common factor for 120secs,135secs is 1080secs.
For A, 4800secs/1080secs=4.4(app 4)
For B, 5400secs/1080secs=5
Therefore A and B meet 4 times and hence bell will struck 4
times...........
Is This Answer Correct ? | 22 Yes | 8 No |
Answer / v venu gopal
If the bell rung when they r started is also counted then it
will be 5 otherwise 4
Is This Answer Correct ? | 6 Yes | 3 No |
Answer / shabnam
if starting consider bell will struck 40 times.
Is This Answer Correct ? | 3 Yes | 6 No |
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