Quantitative Aptitude - Arithmetic Ability Questions

90% of X = 40% of Y and Y = a% of X. What is the value of a?

What is the value of 1xp-q+1+1xq-p+1?

In the following question, select the odd number pair from the given alternatives.

The length of the diagonal of a square is 12 cm. Find its area (in cm2).

Abhay and Chintan are riding their motorcycles. They start from the same point. Abhay rides 7 km North, then turns to his left and rides 4 km. In the meanwhile Chintan rides 6 km West, then turns North and rides 7 km, then turns to his left and rides 8 km. Where is Abhay with respect to Chintan?

Amar is 2 times as good a workman as Badal and therefore is able to finish a job in 15 days less than Badal. In how many days can they together complete the job?

Cost price of a calculator is Rs 495. If the profit percentage is 40%, then what is the value (in Rs) of profit?

Consider  the  multiplication  999  ×  abc  =  def132  in  decimal  notation, where  a,  b,  c,  d,  e  and  f  are digits. What are the values of a, b, c, d, e and f respectively?