Questions and answers from this day. Play today's quiz to build your streak.
Question 1 · Mensuration
Answer: 308 cm³. Volume = π r² h = 22/7 × 7 × 7 × 2 = 308 cm³.
Question 2 · Coordinate geometry
Answer: 58. Distance = √(40² + 42²) = √3364 = 58.
Question 3 · Arithmetic progressions
Answer: 106. nth term = a + (n − 1)d = 10 + 16 × 6 = 106.
Question 4 · Quadratic equations
Answer: 7. x² − 12x + 35 = (x − 7)(x − 5) = 0, so the roots are 7 and 5. The larger is 7.
Question 5 · AP sums
Answer: 560. Sum = n/2 × (2a + (n − 1)d) = 14/2 × (2 + 78) = 560.
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