From a group of 7 men and 6 women, five persons are to be selected to form a committee so that at least 3 men are in the committee. In how many ways can it be done?
ক) 564
খ) 645
গ) 735
ঘ) 756
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ক) 2500
খ) 2700
গ) 2900
ঘ) 3100
ক) 9
খ) 44
গ) 13
ঘ) 15
ক) Pump-Boiler-Turbine-Condenser
খ) Turbine- Boiler-Pump-Condenser
গ) Pump-Turbine-Condenser-Boiler
ঘ) Boiler- Pump- Turbine- Condenser
ক) Uranium-232
খ) Uranium-235
গ) Uranium-239
ঘ) Uranium-238
ক) frequency
খ) intermittency
গ) pollution
ঘ) cost
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