Quantitative Aptitude - Arithmetic Ability Questions

A 12 m long wire is cut into two pieces, one of which is bent into a circle and the other into a square enclosing the circle. What is the radius of the circle?

5% discount is offered on an item. By applying a promo code the customer wins 20% cash back. What is the effective discount?

A, B and C can together do a job in 9 days. C alone can do the job in 36 days. In how many days can A and B do 50% of the job working together?

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 a class of 50 students there are 22 girls who scored an average of 35 marks in the test. What is the average marks of the boys if the class average is 42 marks?

U and V started a business by investing amounts Rs 184000 and Rs 224000 respectively. If U’s share in the profit received at the end of year is Rs 20700, then what will be the total profit (in Rs)earned by them together?

If N = 0.369369369369... and M = 0.531531531531..., then what is the value of (1/N) + (1/M)?

If cosec4A -­ cosec2A = x, then value of x is?