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Let the total number of people be x. Male = 25% of x = x/4 Remaining = x - x/4 = 3x/4 Female = 40% of (3x/4) = 3x/10 Now, children left = x - (x/4 + 3x/10) = 720 => 9x/20 = 720 => x = 720 x (20/9) => x = 1600 Total number of people in a zoo is 1600.
A ladder leans against a wall. The foot of the ladder is 6 meters away from the wall. If the angle the ladder makes with the ground is 60°, find the le...
If tan θ = 4/3 and θ is an acute angle, find the value of sin θ + cos θ.
If x = (sin 30 ° + cos 30 ° )/sec 60 ° , then find the value of 4x.
tan 1˚ × tan 2˚× …………………….tan 88˚ × tan 89˚ = ?
Sec A -Tan A = 1/16 then find the value of cot A =?
If (5sinx - cosx) = 2√2sinx, then find the value of 'tanx'
Find the simplified value of:
(tan 40 º + tan 20 º )/(1 - tan 40 º tan 20 º)
Simplify (cos13°+sin 13°) /(cos13°-sin13°)
