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भौतिक विज्ञान 21-40 (in Hindi)
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Important physics questions


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(2)
U
Unacademy user
sir how to solve problem when two particular person is not in the same group in a group of 9 person nd we hve to select 5 person.please sir explain it
P
sir please english mai b upload kijiye
plz English me b batayen .. Hume Hindi ni aati