Quantitative Aptitude - Arithmetic Ability Questions

The circumference of a circle is 110 cm. Find its radius (in cm).

Expanded and simplification of (x + 3)(x - 1) will be equal to

A trader buys 500 kgs of cotton for Rs 9,000. 10% of this cotton is spoiled due to rain. At what rate (Rs/Kg) should he sell the rest to earn 10% profit?

The greatest perfect square number of 6 digits is

ΔXYZ is similar to ΔPQR. If ratio of Perimeter of ΔXYZ and Perimeter of ΔPQR is 4:9 and if PQ = 27 cm, then what is the length of XY (in cm)?

If 15 persons can do a job in 30 days, then 30 persons with twice the efficiency can do the same job in how many days?

5% more is gained by selling a watch for Rs. 350 than by selling it for Rs. 340. The cost price of the watch is

If 4x - 5y = -37 and 7x + y = -16, then x - y = ______