What value should come in place of the question mark (?) in the following question?

52x14+145018=1998÷?

What will be the value of xy, if x2+y2 = 45 and x-y=5 ?

If FRIEND is coded as HUMJTK, how can CANDLE be written in that code?

A cylindrical vessel of radius 4 cm contains water . A solid sphere of radius 3 cm is dipped into the water until it is completely immersed . The water level in the vessel will rise by

If cosec∅+sin∅cosec∅-sin∅=53 then the value of sin∅is equal to

Two chords AB and PQ of a circle intersect at D inside a circle. If AD = 4 cm, DB = 6 cm, QD = 3 cm, the length of PQ is equal to

If O is the centroid and AD, BE and CF are the three medians of Δ ABC with an area of 96 cm2 then the area of Δ BOD in cm2 is

In the following question, select the missing number from the given series.34, 69, 140, 283, ?, 1145

If Sinθ = √3/2 and 0°<θ<90°, then the value of tan(θ-15°) is