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Let total capacity of the tank is 96 litres (LCM of 32 and 24) Quantity of water filled by tap ‘A’ in one hour = 96/32 = 3 litres Quantity of water filled by tap ‘B’ in one hour = 96/24 = 4 litres Let tap ‘A’ is closed after ‘x’ hours So, 7 × x + 4 × (15 – x) = 96 Or, 3x = 36 Or, x = 12 hours
From a point "A" on the ground, the angle of elevation to the top of a tower measuring 12 meters in height is 30°. Determine the horizontal distance be...
If sec(2A + B) = 2 and cos(A + B) = (1/√2) , find the value of {sec 2B + tan (A + B) } given that 0o < A, B < 90o
A man is standing at a point 40 meters away from a tower. The angle of elevation of the top of the tower from the point is 45°. After walking 20 meters...
Find the value of sin(θ) if 2sinθ = tanθ, for 0 < θ < 90°.
From a point on the ground, the angle of elevation of the top of a building is 45°. After walking 10 meters towards the building, the angle of elevatio...
Find the simplified value of:
If cos4 B - sin4 B =