Get Started with ixamBee
Start learning 50% faster. Sign in now
A’s 4 days’ work = (1/10×4) = 4/10 = 2/5 work (A + B + C) 1 day work = (1/10+ 1/15+1/30) =(3 +2 +1 )/30 = 1/5work Work done in 5 days = 2/5 + 1/5 = 3/5 Remaining work = 1-3/5 =2/5 work A can do 2/5 work in 4 days. ∴ Whole work will be done in 5 + 4 = 9 days Alternate Method: A B C Time taken 10 15 30 Total work = LCM 30 units 3 : 2 : 1 ATQ, A 's work in first 4 days = 3`xx` 4 = 12 units & work in 5th day by all = 3+2+1 = 6 units So total work in 5 days = 12+6=18 units Hence remainning work = 30 - 18 = 12 units , after that again A worked alone for next 4 days @ 3 units per day So he will finish this 12 units in 4 days Hence total days = 5+4 = 9 days
The volume and height of a cylinder are 2662 cm3 and 7 cm. Find the radius of the cylinder.
A rectangular hall has a length of 32 meters and a perimeter of 96 meters. If the entire hall is to be carpeted at a cost of Rs. ...
The weight of a cubic metre metal is 1215 kg. It is melted and cast into a square rod of 9m length. A solid cube of maximum size is taken out from one e...
On a rectangular wall of length 35 metres and height 30 metres, there is a window in the shape of triangle surmounted on a square. If the base of triang...
If the ratio of the heights of two cones is 3:2 and the diameters are in the ratio 5:6, what is the ratio of their volumes?
The lateral surface area of frustum of a right circular cone, if the area of its base is and the diameter of circular upper surface is 4 cm and slant he...
A square has an area of 289 cm². The rectangle's breadth is 20% more, and its length is 50% more than the square's side. What is the area ratio of the ...
If 35 grams of sugar is further added to a 20 percent sugar solution, the solution then becomes a 36 percent sugar solution. What was the initial quanti...
Find the area of sector of a circle whose radius is 21 cm and angle subtended by the sector at centre of circle is 45 ° .
