Quantitative Aptitude - Arithmetic Ability Questions

In the given figure, AB = 30 cm and CD = 24 cm. What is the value (in cm) of MN?

A trader buys 800 kgs of tomatoes for Rs 7200. 10% tomatoes are damaged in transportaion. At what rate (Rs/Kg) should he sell the rest to earn 30% profit?

If 1-aa3+9 = 19 - a1-a3, then what is the value of a?

A number is divided by 52, we get 27 as remainder. On dividing the same number by 13, what will be the remainder?

A man was 32 years of age when he had his first son. His wife was 35 years of age when his son attained the age of 7 years. The difference between the age of the father and the mother is _____

Mr. Murthy invested Rs. 16,000 in a scheme. How much will he get on matuirity, if he invested it at 20% per annum C.I. for 9 months, compounded quarterly?

If R = 97 and S = 155.2, then S is how much percentage more than R?

If the shopkeeper sells an item at Rs 4400 which is marked as Rs 5000, then what is the discount that he is offering?