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Air Force X & Y Group || Weekly Revision
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Question 1
Three pipes A, B and C can fill a tank in 20 hours. In the starting they fill the tank together and after 4 hours pipe A stopped working. Pipe B and C together fill the left-over capacity of tank in 12 hours. Find how many hours pipe A will take to fill or empty the tank alone? (Note- efficiency of pipe A shows the nature of pipe whether it is filling pipe or emptying pipe)
Question 2
If x2 – 13x + 39 = 0, then find the value of 
.
.
Question 3
The interior angle of a regular polygon is 40° more than 6 times of its one exterior angle. Find the number of diagonals in this polygon?
Question 4
Identify the Venn diagram that best represents the relationship between the given classes.
Television, Fridge, Table
Television, Fridge, Table
Question 5
If orange is called blue, blue is called red, red is called white, white is called pink and pink is called green then what is the colour of milk?
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Apr 4NDA
