Question
The perimeter of 4 squares is 16 cm, 32 cm, 36 cm and 44
cm respectively. What will be the area of the square having perimeter equal to sum of edges of 4 squares? (in sq.cm)Solution
Let side of 4 squares be a, b, c and d cm respectively. => a = 16/4 = 4 cm => b = 32/4 = 8 cm => c = 36/4 = 9 cm => d = 44/4 = 11 cm Perimeter of new square = a + b + c + d = 32 => side = 32/4 = 8 cm Required area = side2 = 82 = 64 cm2.
A alone can finish a piece of work in 15 days and B alone in 20 days. They work together for 4 days and then A leaves. In how many more days will B fini...
A can complete a job in 12 days, B in 18 days. They work together for 6 days, then A leaves. How many more days will B take to finish the remaining work?
A ranch has 70 horses, and there’s food to last for 6 days. If 14 more horses are added, then how many days will the food last?
‘A’ is 40% more efficient than ‘B’. ‘A’ and ‘B’ work together for 8 days after which ‘A’ is replaced by ‘C’. ‘B’ and ‘C�...
- A can complete a piece of work in 80 days, B takes 20% more time than A to complete the same work while C takes 25% more time than B to complete the whole ...
'Akshay' alone takes 18 days to finish a work while 'Bhim' alone takes 24 days to finish the same work. If 'Akshay' and 'Bhim' work on alternate days st...
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...
- Ajay alone can complete a work in 50 days. Vijay is four times as efficient as Ajay. Find the percentage of work completed by Ajay and Vijay together in 10...
A can complete a piece of work in 12 days and B can complete it in 18 days. They work together for 4 days and then B leaves. In how many more days will ...
John, Emily, and Michael can each complete a task in 15 days, 20 days, and 18 days, respectively. They decide to work on the task alternately, starting ...