In which of the following market does devaluation of

If a + (1/a) = 2, then find the value of (a⁵ + a³ + 6)/(7a – 5). 

Given a triangle with two sides measuring 12 cm and 16 cm, which of the following cannot be a possible length for the third side?

A man running at the speed of 6 kmph was over taken by the train moving with the speed of 78 kmph in 20 seconds. Find the length of train.

(15 x 15 x 15 + 8 x 8 x 8)/(15 x 15 -15 x 8 + 8 x 8) = ?

If (a²  + 1/a² ) = 66, then find the value of (a³  – 1/a³ ).

A train can cross a pole, a bridge of 720 meter long and platform of 640 meter long in 9 seconds, _____ seconds and 25 seconds, respectively.

ABCD is a cyclic quadrilateral in which AB =16.5 cm. BC = x cm. CD= 11 cm. AD 19.8 cm, and BD is bisected by AC at O. What is the value of x?