Quantitative Aptitude - Arithmetic Ability Questions

If X = 600 and Y = 800, then X is how much percent less than Y?

11 January 2018 is a Thursday. On which day will 11 June 2019 fall?

A does 80% of a work in 20 days. He then calls in B and they together finish the remaining work in 3 days. How long B alone would take to do the whole work?

In ∆XYZ measure of angle Y is 90 deg. If cosecX = 13/12, and XY = 1cm, then what is the length ( in cm ) of side YZ?

What is the value of cot 5π/3?

∆PQR is right angled at Q. If sinP = 12/13, then what is the value of tanR?

If A = 232, B = 231+ 230+ 229+ ... + 20and C = 315+ 314+ 313+ ... + 30, then which of the following option is TRUE?

In triangle PQR, C is the centroid. PQ = 30 cm, QR = 36 cm and PR = 50 cm. If D is the midpoint of QR, then what is the length (in cm) of CD?