Quantitative Aptitude - Arithmetic Ability Questions

Direction: What should come in the place of question mark (?) in the following number series? 24, 25, ?, 41, -8, 73

Two students appeared for an examination. One of them secured 20 marks more than the other and his marks were 55% of the sum of their marks. The marks obtained by them are

When a number is increased by 216, it becomes 140% of itself. What is the number?

There are 90 coins, comprising of 5 and 10 paisa coins. The value of all the coins is Rs. 7. How many 5 paisa coins are there?

S does half as much work as T in 1/7 of the time taken by T. If together they take 21 days to complete a work, then how may days shall S take to complete that work alone?

A shopkeeper marks up his wares by 80% and offers 20% discount. What will be the selling price (in Rs) if the cost price is Rs 450?

The maximum value of 5+20x-4x2, when X is real number

How many numbers are there between 1 to 200 which are divisible by 3 but not by 7?