Quantitative Aptitude - Arithmetic Ability Questions

What is the value of tan 6° tan 36° tan 84° tan 54° tan 45°?

The average weight of Sudesh, Jyothi and Ritu is 89 kg. If the average weight of Sudesh and Jyothi be 98 kg and that of Jyothi and Ritu be 83 kg, then the weight of Jyothi is

Ticket for an adult is Rs 1200 and a child is Rs 800 respectively. One child goes free with two adults. If a group has 25 adults and 5 children what is the discount the group gets?

A train travelling at 76 kmph crosses a 450 m long platform in 27 seconds. What is the length of the train?

Of the 3 numbers whose average is 40, the first is 1/3 rd the sum of other 2. What is the first number?

The mean score in a test of the 12 boys in a class was 16 while the overall mean of the 30 students in the class was 18.1. What was the mean score of the girls?

If y=2-x1+x, then what is the value of 1y+1 + 2y+1y2-1 ?

A, B and C can finish a job working alone in 20, 30 and 60 days respectively. They all work together for 1 day, then A and B quit. How many days C working alone will take to finish the remaining part of the job?