Let A be the event of School A wins Let B be the event of School B wins Then A’ = Event of the School A fails and B’ = Event of the School B fails Therefore P(A’) = 1 - 3/7 = 4/7 P(B’) = 1 - 3/5 = 2/5 Required Probability = P(A) × P(B’) + P(B) × P(A’) = 3/7 × 2/5 + 3/5 × 4/7 = 6/35 + 12/35 = 18/35
The curved surface area of a hemisphere is 72π cm2, then its radius is:
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A solid cone is placed inside a solid hemisphere, both having the same radius and height. If the volume of the cone is 150 cm³, find the total volume o...
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If the word PHOTOGRAPH is spelt with ‘F’ in place of ‘PH', then what would be the percentage reduction in the number of letters?
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A sum of Rs.10600 is to be divided among 6 brothers, 5 sisters and 3 aunts. If each sister receives four times as much as each aunt and each brother rec...
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If the area of a square field is 441 m2, then find the diagonal of the square field.
