The Indian Railways Institute of Civil Engineering is in Pune. The IRICEN is one of six Centralised Training Institutes that share the task of training of officers.
If a + b + c = 6, a² + b² + c² = 14 and ab + bc+ ca = 11, then what is the value of a³ + b³ +c³ –3abc?
If x3 + y3 = 9 and x + y=3 then the value of x4 + y4 is:
(44² × 16²) ÷ (184.8 ÷ 8.4) =? × 64
If x2 – 5x + 1 = 0, then find the value of {x2 + (1/x2)}.
A dishonest dealer claims to sell goods at cost price but uses a false weight of 900g instead of 1kg. What is his profit percentage?
((99.9 - 20.9)² + (99.9 + 20.9)² )/(99.9 x 99.9 + 20.9 x 20.9) = ?
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If polynomial P(x) = x3 - 3x2 + 5x-3 is divided by polynomial G (x) = x2 - 2, the quotient and remainder are:
if 3y-3/y=8 then find the value of y ² +1/y²
