Question
Vikas does 65% of a job in 39 days, while Suman does 40% in
40 days. Vikas worked for 18 days and left. Calculate how many days Suman would need to wrap up the remaining task.Solution
ATQ,
Vikas’ full-time = 39 / 0.65 = 60 days
Suman’s full-time = 40 / 0.40 = 100 days
Total work = LCM(60, 100) = 300 units
Vikas’ efficiency = 300 / 60 = 5 units/day
Suman’s efficiency = 300 / 100 = 3 units/day
Work done by Vikas = 18 × 5 = 90 units
Remaining work = 300 - 90 = 210 units
Time by Suman = 210 / 3 = 70 days
A right circular cylinder having total surface area of 2710.4 cm2 is immersed in a vessel completely filled with water. If the height of the ...
There is a rectangular paper, whose length and breadth are in the ratio 6:5, respectively and it has a perimeter of 44 metres. If a triangular piece wit...
Two paths of width 5 metres are to be made in the centre of rectangular field such that they are perpendicular to each other. Find the area (in m2<...
The ratio between the length and the breadth of a rectangular park is 3 : 2. If a man cycling along the boundary of the park at the speed of 12 km/hour...
The radius of the base of a solid right circular cylinder is 7 cm, and its height is four times the radius of the base. Determine...
The length of sides of a square is twice the radius of a circle and perimeter of a rectangle is half the perimeter of the square. If the sum of length a...
A square whose diagonal is 12 √2 cm is made base of the pyramid. if height of the pyramid is 18cm, then what is the total surface area of the pyramid....
The perimeter of a rectangular field is 44 metres and its area is 114 m2 . What is the length of the diagonal of this field?
Measure of each interior angle of a regular polygon can never be?
Some balls are to be distributed among some boys. If 5 more balls are available, each boy gets 8 balls. If 6 less balls are available, each boy gets 4 b...
Relevant for Exams:
