Quantitative Aptitude - Arithmetic Ability Questions

The product of two numbers is 0.432. One of the numbers is 1.6. What is the other number?

Rahul can complete a work in 18 days and Sonu can complete the same work in 15 days. If both together work for 5 days, then what part of total work is left?

If a+1a=1,then the value of a2-a+1a2+a+1 is a≠0

Reflection of the point (3,-6) in the y-axis is

Δ ABC is right angled at B. If m∠A = 60°, then what is the value of 2 Sec C x 1/2 Sin A?

From a point P, the angle of elevation of a tower is such that its tangent is 3/4. On walking 560 metres towards the tower the tangent of the angle of elevation of the tower becomes 4/3. What is the height (in metres) of the tower?

In ΔDEF measure of angle E is 90 deg. If cotD = 8/15, and DE = 16cm, then what is the length (in cm) of side EF?

Find the odd letters from the given alternatives.