Question
To represent the unit of data, which of the following
devices use ‘set of beads’?ÂSolution
The abacus (plural abaci or abacuses), also called a counting frame, is a calculating tool with a set of beads for counting.
If 12 men working 12 hours a day can make 12 quilts in 12 days, then in how many days 24 men working 24 hours per day will make 24 quilts?
5 men and 10 women can do some work in 3 days. If each man is 150% more efficient than a woman, then find the time taken by 9 men to finish the same wo...
A alone can complete a work in 18 days and B alone can complete it in 27 days. They work together for 6 days and then B leaves. In how many more days wi...
Pipes 'P' and 'Q' can fill a tank in 36 minutes and 72 minutes respectively. A third pipe 'R' can empty it in 1 hour 48 minutes. 'P' and 'R' are turned ...
A, B, and C together can complete a task in 8 days. A alone can do it in 24 days, and B alone can do it in 18 days. How long will it take C alone to fin...
Three boys can do a work in 15 days where as 6 girls can do in 12days. What will be the time taken to complete the same work by a teacher if the efficie...
Farhan and Dev can complete a work alone in 75 days and 90 days respectively. If they work together and earn Rs. 8,250, find Dev’s share.
- 40 women working 10 hours a day take 12 days to complete a project. How many women working for 7 hours a day are needed to complete twice the given project...
'A' and 'B' alone can complete a work in 10 days and 15 days, respectively. If they worked together and total wage received by them to complete the work...
Priya and Meena alone can complete a project in 54 days and 81 days respectively. They work together and earn Rs. 9,100. Find the share of Priya.
