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Mathematics, 09.05.2021 20:30 jaychavez1926

On a particular day, a number of candidates arrived to take various examinations at a center. of these, half took the physics paper in the morning and 70 took Geography paper in the afternoon there were only 20 candidates who took both the physics and Geography paper Find how many of the candidates
(i) took the examination
(ii) took the physics paper but not the Geography ​

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