a can type 30 words in 1 minute and b can type 20 words in 1 minute both can type how much words in 1 minute
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They will type 50 words in one minute
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9
Answer:
1min= 60 sec
Words typed by A in 60 seconds =30
Words typed by B in 60 seconds =20
Words typed by A in one second=1/2
Words typed by B in one second=1/3
Words typed by both of them in one second= 1/2 + 1/3
=(3+2)/ 6
=5 /6
Words typed by both of them in 60 second= (5/6) ×60
= 50
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