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The slope of the line which is perpendicular to a line joining the points (0, 0) and (− 8, 8) is
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If slope of the line PQ is `1/sqrt(3)` then slope of the perpendicular bisector of PQ is
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Without using distance formula, show that the points (−2, −1), (4, 0), (3, 3) and (−3, 2) are vertices of a parallelogram
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Find the equation of a line passing through the point of intersection of the lines 4x + 7y – 3 = 0 and 2x – 3y + 1 = 0 that has equal intercepts on the axes.
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The radius of a sphere increases by 25%. Find the percentage increase in its surface area
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The internal and external diameters of a hollow hemispherical vessel are 20 cm and 28 cm respectively. Find the cost to paint the vessel all over at ₹ 0.14 per cm2
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The total surface area of a hemisphere is how many times the square of its radius
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Find the least positive value of x such that 71 ≡ x (mod 8)
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Find the least positive value of x such that 78 + x ≡ 3 (mod 5)
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Find the least positive value of x such that 96 ≡ `x/7` (mod 5)
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Find the least positive value of x such that 5x ≡ 4 (mod 6)
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If x is congruent to 13 modulo 17 then 7x – 3 is congruent to which number modulo 17?
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Solve 5x ≡ 4 (mod 6)
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Solve 3x – 2 ≡ 0 (mod 11)
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What is the time 100 hours after 7 a.m.?
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What is time 15 hours before 11 p.m.?
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Today is Tuesday. My uncle will come after 45 days. In which day my uncle will be coming?
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Prove that 2n + 6 × 9n is always divisible by 7 for any positive integer n
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Find the remainder when 281 is divided by 17.
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The duration of flight travel from Chennai to London through British Airlines is approximately 11 hours. The airplane begin its journey on Sunday at 23:30 hours. If the time at Chennai is four and half hours ahead to that of London’s time, then find the time at London, when will the flight land at London Airport?
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