In ΔABC, D is a point on side BC such that ∠ADC = 2∠BAD. If ∠A = 80° and ∠C = 38°, then what is the measure of ∠ADB?

The following table shows the number of units of product produced and sold by a company during six years.

What is the percentage of the number of units produced in 2017 more than the number of units produced since 2012?

A, B and C did certain investments and the ratio of their time periods is 3 : 2 : 7respectively. Ratio of  the profits of A, B and C is 4 : 3 : 14 respectively. What is the ratio of the investments of A, B and C?

If $$ {(x-5)^{2} +{(y-2)^{2}}+{(z-9)^{2}=0}}$$ then what is the value of (x+y-z)?

Train A of length 120 m can cross a platform of length 240 m in 18 second the ratio of speed of train A and Train B is 4 : 5. Then find the length of Train B if train B can cross a pole in 12 seconds.

If p³ – q³ = (p-q)[(p-q)²+xpq)] then the value of x is

The speed of a  boat in still water is 20 kmph and the rate of current is 4 kmph. The distance travelled by the boat downstream in 30 minute is

Pipes A and B together can fill a tank in 16 hours, whereas pipe C alone can empty the full tank in 24 hours. A and B were opened together for 10 hours and then closed. Pipe C was then opened. The tank will now be emptied by C in: