Boat A travels downstream from Point X to Point Y in 3 hours less than the time taken by Boat B to travel upstream from Point Y to Point Z. The distance between X and Y is 20 km, which is half of the distance between Y and Z. The speed of Boat B in still water is equal to the speed of Boat B upstream. What is the speed of Boat. A in still water

(Consider the speed of the current to be the same.)

Eight years ago, Poorvi’s 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 Poorvi’s 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 years)

In a village, 60% registered voters cast their votes in the election. Only two candidates (A and B) were contesting the election. A won the election by 600 votes. Had B received 40% more votes, the result would have been a tie. How many registered voters are there in the village

10 men can complete a project in 12 days, 12 children can complete the same project in 16 days and 8 women can complete the same project in 20 days. 5 men and 12 children started working on the project. If after 4 days, 8 children were replaced by 4 women. In how many days the remaining project was completed

What is the number of matches played by batsman C in the tournament

Batsman B faced equal number of balls in first 10 matches he played in the tournament and last 10 matches he played in the tournament. If his strike rate in first 10 matches and last 10 matches of the tournament are 120 and 150 respectively, what is the total number of balls faced by him in the tournament