For the following questions answer them individually
The ratio of the ages of two persons is 4 : 7 and-the age of one of them is greater than that of the otter by 30 years. The sum of their ages (in years) is
The value of $$\theta$$, which satisfies the equation $$\surd3 tan \theta$$ + 3 = 3 secθ, 0° ≤ θ < 90° is
A right pyramid 6 m height has a square base of which the diagonal is $$\sqrt{1152} m$$. Volume of the pyramid is
A train running at the speed of 84 km/hr passes a man walking in opposite direction at the speed of 6 km/hr in 4 seconds. What is the length of train (in metre) ?
If $$2^{x-1} + 2^{x+1} = 320$$, then the value of x is
Among the angles 30°, 36°, 45°, 50° one angle cannot be an exterior angle of a regular polygon. The angle is
If sinθ = 0.7, then cos θ, 0 ≤ θ < 90°, is
If a = 4011 and b = 3989 then value of ab = ?
The value of $$sin^{2} 65^{\circ} + sin^{2} 25^{\circ} + cos^{2} 35^{\circ} + cos^{2} 55^{\circ}$$ is
In the following number series a wrong number is given. Find out that number.
8, 18, 40, 86, 178, 370, 752
