Questions and answers from this day. Play today's quiz to build your streak.
Question 1 · Arithmetic progressions
Answer: 36. nth term = a + (n − 1)d = 9 + 9 × 3 = 36.
Question 2 · Probability
Answer: 4/7. Probability = favourable ÷ total = 4/7.
Question 3 · Algebraic identities
Answer: 35. (a + b)² = a² + 2ab + b², so a² + b² = 7² − 2 × 7 = 49 − 14 = 35.
Question 4 · Coordinate geometry
Answer: 50. Distance = √(14² + 48²) = √2500 = 50.
Question 5 · Mensuration
Answer: 1232 cm³. Volume = π r² h = 22/7 × 7 × 7 × 8 = 1232 cm³.
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