Quantitative Aptitude - Arithmetic Ability Questions

Find the greatest length which can be used to measure exactly three cloth pieces of lengths 1.26 m, 1.98 m and 1.62 m respectively.

If sinθ+cosθsinθ-cosθ=3,then the value of sin4θ-cos4θ is

Excluding stoppages, the speed of a bus is 60 kmph and including stoppages, it is 45 kmph. For how many minutes does the bus stop per hour?

A and B together can complete a work in 24 days. B alone does 1/3rd part ofthis work in 12 days. How many days will A alone take to complete the remaining work?

What is the average of all natural numbers from 21 to 39?

What is the equation of the line passing through the point (-1,3) and having x-intercept of 4 units?

Δ DEF is right angled at E. If m ∠D = 30°. What is the length (in cm) of DE, if EF = 2√3 cm?

The areas of a circle and square are equal. What is the square of the ratio of length of diameter to the length of diagonal?