Quantitative Aptitude - Arithmetic Ability Questions

In a triangle PQR, ∠PQR = 90 deg, PQ = 10 cm and PR = 26 cm, then what is the value (in cm) of inradius of incircle?

Which of the following triangle has the maximum area when inscribed inside the circle of same radius?

The income of P, Q and R are in the ratio of 5 : 4 : 3 respectively and their expenses are in the ratio of 6 : 5 : 4 respectively. If P saves Rs 4000 out of an income of Rs 10000, then what will be the saving (in Rs) of Q?

If P + 1P+2 = 1, then the value of P+23+1P+23-3 ?

What is the value of tan 300°?

If a4 + 1 = [a2 /b2 ] (4b2 – b4 – 1), then what is the value of a4 + b4?

Find the value of 491321973

Find out the odd word/letters/number/number pair from the given alternatives.