20men can dig a trench in 15hours, how many men can dig the same trench in 10 hours if they work at the same rate?
2 answers:
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Given:
Jennifer writes the letters M-O-N-T-A-N-A on cards.
To find:
The probability of picking an N.
Solution:
We have,
Total number of cards = 7
Total number of cards with letter N = 2
Now, the probability of picking an N is:
Therefore, the probability of picking an N is .