Quantitative Aptitude - Arithmetic Ability Questions

The average marks obtained in a class of 50 students is 70%. The average of first 25 is 60% and that of 24 is 80%. What is the marks obtained by the last student?

If x3+ 2x2– 5x + k is divisible by x + 1, then what is the value of k?

In which of the following quadrilaterals both pairs of opposite sides are parallel?

A jar contains a blend of a fruit juice and water in the ratio 5 : x. When 1 litre of water is added to 4 litres of the blend the ratio of fruit juice to water becomes 1 : 1. What is the value of x?

If 10 people can do a job in 20 days,then 20 people with twice the efficiency can do the same job in

Find the unit place in 194102+294103

A bag has Rs 43 in the form of 5-rupee, 50-paise and 10-paise coins in the ratio of 1:5:11. What is the total number of 50-paise coins?

Among three numbers, the first is twice the second and thrice the third. If the average of three numbers is 429, then what is the difference between the first and the third number?