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Let total work = 70 units (LCM of 10 and 14) Efficiency of ‘A’ = (70/10) = 7 units/day Efficiency of ‘B’ = (70/14) = 5 units/day Combined efficiency of ‘A’, ‘B’ and ‘C’ = (70/5) = 14 units/day Efficiency of ‘C’ = 14 – (7 + 5) = 2 units/day Required time taken = (70/2) = 35 days
ABCD is a cyclic quadrilateral, such that ratio of measures ∠A, ∠B and ∠C is 1 : 4 : 5, then the measure of ∠D is.
The sum of length, breadth and height of cuboid is 20cm.If the length of the diagonal is 12 cm, then find the total surface area of the cuboid.
If the area of a square field is 729 m2, then find the diagonal of the square field.