Find the number of ways in which 5 boys and 5 girls be seated in a row so that no 2 girls may sit together

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Cutoff mrks for AFCAT exam.

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Is there any trick to solve para jumbles?

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XY=9,XZ=12, ZX=15 a perpendicular is drawn from Y to meet at ZX at A and a circle with Diameter AY is drawn which cuts XY and YZ at B and C respectively.what is the ratio of BX:CZ

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find the reminder when 1643276569 is divided by 25....
please give me an explanation

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