Distance between two stations A and B is 778km. A train covers the journey from A to B at 84km per hour and returns back to A with a uniform speed of 56km per hour. Find the average speed of train during the whole journey.
Divide 275 trophies in A, B and C in such a way that A: B = 3: 7, B: C = 2: 5, how many trophies will B have?
Divide Rs. 6000 into two parts so that simple interest on the first part for 2 years at 6% p.a. may be equal to the simple interest on the second part for 3 years at 8% p.a.
Each member of a picnic party contributed twice as many rupees as the total number of members and the total collection was 3042. The number of members present in the party was
Each side of a rectangular field diminished by 40%. By how much per cent is the area of the field diminished?
Eight consecutive numbers are given. If the average of the two numbers that appear in the middle is 6, then the sum of the eight given numbers is
Eight people are planning to share equally the cost of a rental car. If one person withdraws from the arrangement and the others share equally the entire cost of the car, then the share of each of the remaining persons increased by:
Eight year ago, Poorvis age was equal to the sum of the present ages of her one son and one daughter. Five years hence, the respective ratio between the ages of her daughter and her son that time will be 7 : 6. If Poorvis husband is 7 years elder to her and his present age is three times the present age of their son, what is the present age of the daughter ? (in year)
Eight years ago, Ajays age was 4/3 times that of Vijay. Eight years hence, Ajays age will be 6/5 times that of Vijay. What is the present age of Ajay ?
Eighteen years ago, a mother was three times as old as her daughter. Now the mother is only twice as old as her daughter. Then the sum of the present ages of daughter and the mother is ?
