Quantitative Aptitude - Arithmetic Ability Questions

The difference between cost price and selling price is Rs 12.54. If loss percentage is 33%, then what is the cost price (in Rs)?

A and B together do a job in 12 days and A could do the job in 20 days if he worked alone. How many days would B take to do the job if he worked alone?

In a class of 65 students there are 39 girls. The average weight of these girls is 60 Kg and average weight of the full class is 64 kgs. What is the average weight of the boys of the class?

If 7A = 5B = 2C; find A : B : C.

If 21% of an electricity bill is discounted, Rs 1817 is still to be paid. How much was the original bill amount?

Area of 4 walls of a cuboid is 448 sq cm, its length is 18 cm and height is 8 cm. What is its breadth (in cm)?

What is the length of the side of an equilateral triangle, if its area is 64√3 sq cm?

Find the odd word/letters/number pair from the given alternatives.
(A) 52­61 (B) 43­54 (C ) 72­83 (D) 18­29