Question
If the radius of a circle is given up to 19 times, how
much of its perimeter will be the perimeter of the previous perimeter?Solution
Let the radius of the circle be r cm. Circumference of the circle = 2 Οr The new radius of the circle = 19 r New circumference of the circle = 2 Ο Γ 19r = 38 Οr Required answer = 38 Οr/2 Οr = 19 (times)
Thirty men working 8 hours daily complete a task in 16 days. If the work increases to three times the original and needs to be fi...
A can complete a piece of work in 12 days and B can complete the same work in 18 days. They work together for 4 days and then leave the remaining work ...
Ram can do a piece of work in 12 days and Shyam can do the same work in 20 days. They both started work together, Ram left 4 days before the completion ...
6 women and 4 children can complete a piece of work in 12 days. If 3 more women join them, they can finish 3/5 of the work in 6 days. Find the time take...
16 men can complete a work in 10 days. 10 men started the same work and left after working for βyβ days. The remaining work is completed by 6 men in...
'R' can independently complete a task in 36 days, whereas 'S' can accomplish 40% of the same work within 16 days. 'S' starts the task solo and withdraws...
A and B together can complete a piece of work in 32 days while A alone can complete 40% of the work in 32 days. Find the time taken by B to compl...
A can finish a task by himself in 25 days, whereas B can finish the same task by himself in 10 days. A begins the task but stops after 5 days, at which ...
βPβ alone can paint a house in 18 days, while βPβ and βQβ together can do it in 12 days. If βQβ started the work and left after 6 days, ...
βAβ can do a piece of work in 12 days. βBβ can do 60% of the same work in 18 days. If they work together for the entire time and get paid Rs.154...
Relevant for Exams:
