Quantitative Aptitude - Arithmetic Ability Questions

The average (arithmetic mean) amount of savings of ten students is Rs. 600. Three of the students have no savings at all and each of the others have at least Rs. 250 including Nihar, who has exactly Rs. 1300. The largest amount, in Rs., that any one student could have is

A train is moving at the speed of 72km/hr. How many seconds will it take to cover a distance of 1400 m ?

Two numbers are in ratio 3:4. When 3 is subtracted from both the numbers, the ratio becomes 2:3. Find the sum of the numbers.

2cos[(C+D)/2]sin[(C-D)/2] is equal to

Select the odd number from the given alternatives.

If θ is positive acute angle and 4sin2θ = 3, then the value of tan θ - cot θ/2 is

614% of 1600 + 1212% of 800 is equal to

Ravi had five subjects in his final examination. The maximum marks in each subject are 100. If his percentage in four subjects is 80, and he scores 65 marks in the fifth subject, determine his overall percentage for the five subjects.