Quantitative Aptitude - Arithmetic Ability Questions

If 'Q ' means ' +', 'J ' means ' X',T ' ' means '- ' and 'K ' means '÷ ', then what is the value of18K3Q7J ?

If [2(4x/5 - 3/4)]/3 - 5/3 = -1/6, then the value of x is?

What is the value of tan 6° tan 36° tan 84° tan 54° tan 45°?

In ∆DEF measure of angle E is 90°. If secD = 25/7, and DE = 1.4cm, then what is the length (in cm) of side DF?

What is the value of sin (B – C) cos (A – D) + sin (A – B) cos (C – D) + sin (C – A) cos (B – D)?

The largest 5 digit number exactly divisible by 95 is ______.

Two equal circles intersect so that their centres, and the points at which they intersect form a square of side 1 cm. The area (in sq.cm) of the portion that is common to the circles is

In the following question, select the odd letters from the given alternatives.