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Three pipes, A, B, & C are attached to a tank. A & B can fill it in 20 & 30 minutes respectively while C can empty it in 15 minutes. If A, B & C are kept open successively for 1 minute each, how soon will the tank be filled?
if a,b>0 and a+b=2 then the max value of ab is
A car is filled with four and half gallons of fuel for a round trip.If the amount of fuel taken while going is 1/than the amount taken for coming, what is the amount of fuel consumed while coming back?
If A = x3y2x3y2 and B=xy3xy3, then find the HCF of A, B
An article sold at a profit of 20% if both the cost price and selling price would be Rs.20/- the profit would be 10% more. What is the cost price of that article?
There N stations on a railroad. After adding x stations 46 additional tickets have to be printed. Find N and X.
Distance d=rt where r & t are positive and r is constant,as t increases then d_________
Ram starts from A walking 2 km North and turns right and walks 4 km and turns right again and walks 4 km and turns right again and walks 4 km and meets Radha at Bwalking in the opposite direction to Ram . Distance between A and B
Complete the series: 5, 20, 24, 6, 2, 8, ?
Dinesh is seated 7 from the left and satish is seated 12 from the right. when they interchange their positions, dinesh is seated 22nd from the left. How many people are there?
One ball was dropped from 8ft height and every time it goes half of the height. How much distance it will travell before coming to rest.
the probability of getting at least in a single through of three coins is
Complete the series 2, 7, 24, 77,__ (hint: 2*12= 24, 7*11= 77, therefore 24*10= 240)
The local wind which blows down the Rockies in Canada is known as:?
Hansie made the following amounts in seven games of cricket in India: Rs.10, Rs.15, Rs.21, Rs.12, Rs.18, Rs.19 and Rs.17(all figures in crores of course).Find his average earnings.