Quantitative Aptitude - Arithmetic Ability Questions

In what time will a 100 metre long train running with a speed of 50 km/hr cross a pillar?

PAB and PCD are two secants to a circle. If PA = 10 cm, AB = 12 cm and PC = 11 cm, then what is the value (in cm) of PD?

If the side of a square is increased by 20%, then what will be the percentage increase in its perimeter?

Find the odd words/letters/number from the given alternatives.

What is the simplified value of (cos4 A – sin4 A)?

If sin - 4π/3 = x, then the value of x is

If sec -5π/4 = x, then the value of x is

Two students appeared for an examination. One of them secured 13 marks more than the other and his marks were 76% of the sum of their marks. The marks obtained by them are