Question
Three taps A, B and C can fill a tank in 10, 18 and 6
hours, respectively. If A is open all the time and B and C are open for one hour each alternatively, starting with B, the task will be fill inSolution
A   B  C 10  18  6    90 9   5  15 First hours A+B=9+5=14 Second hours A+C=9+15=24 fill the tank in two hours =14+24=38 similarly, work done in four hours =76 Now remaining work done by A+B- In the fifth day, total work =76+14 =90
Given a triangle with two sides measuring 12 cm and 16 cm, which of the following cannot be a possible length for the third side?
- Find the remainder on dividing (5x 3  + 4x 2  – 10x + 1) by (2x – 4).
The area (in sq, units) of the triangle formed by the graphs of 8x + 3y = 24, 2x+8 = y and the x – axis is:
If x −y =4and xy =45,thenthevalueof x 3 −y3is:
If x + y = 2 and 1/x + 1/y = 18/15, then find the value of (x3 + y3)?
22% of ‘x’ is equal to 66% of ‘y’, then find the value of x: y.
If y + 1/y = 2 then find y117 + 1/(y117)
if a2 + b2 + c2Â =Â 2(4a -5b -9c)-122 , then a-b-c = ?
If a – b – c = 0, then the value of (a2 + b2 + c2)/(b + ac) is:
If 5x - 13xy + 6y = 0, find x : y.
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