There are three drain pipes P1, P2 and P3, all of equal capacity. fitted to a cylindrical tank of height 6 metres. P1 is fitted at the bottom of the tank, while P3 is fitted at a height of 5 m above the base of the tank and P2, is fitted in between P3, and P1. P1 alone can empty the full tank in T minutes and if all the three pipes are in operation, the full tank can be emptied in 2T/3 minutes. What is the height at which P2 is fitted to the tank?
3 1/2
2 5/6
2 1/3
2 2/3
if x >1 and 4x^2 - 21x + 20 > 0 what is the minimum value of x+1/x-1 ?
3
4
13/3
21/4
If roots of the equation, (x – p) (x + 5) + 9 = 0, are integers and p is also an integer, then what is the sum of all possible values of p? I'm getting -10 x² + 5x - px - 5p + 9 x² + (5-p)x - ( 5p - 9) = 0 25 - 10P + p² - (-20p +36) p² - 10p + 25 + 20p -36 p² +10p - 11 p² -p +11p -11 p(p-1) +11(p-1) Is it right??
In how many ways can 18 identical plates be divided into 3 groups such that each group must at least have one plate?
A polynomial yields a remainder of 2 when divided by (x – 1) and a remainder of 1 when divided by (x – 2). If this polynomial is divided by (x – 1) (x – 2), then the remainder is?
@vishiac @summi_arora
A and B start swimming simultaneously from opposite ends i.e Deep end n shallow end of a swimming pool with speeds 5m/s and 2 m/s.. They swim n and after reaching opposite ends , they change the directions and continue swimming with their respective uniform speeds..when they meet for the 8th time , they meet at a distance of 10meters from the shallow end a) if the race is of the 200 rounds , how many times will they meet b) Find the length of the swimming pool
@summi_arora @Cutiepie1995 @TanujA3 @vishiac.. help please
To complete a certain piece of work, Z would take two-third times as long as X and Y together and Y would take thrice as long as X and Z together. The three men working together can complete the work in 15 days. How long would X alone take to complete a half of the same piece of work? O.a. - 50 days
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Approach please. i was able to solve it through options but not directly
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A tank is one third full and a drain pipe at the bottom of the tank can empty it in 15 mintues. If water is now pumped into the tank, without closing the drain pipe, at a rate such that the tank is filled in 10 mintues, then find the ration of the rate at which the water is pumped in and the rate at which the drain empties the tank.
(a)2:1
(b)3:1
(c)4:1
(d)5:1
Please help
In the year 1948, Ram's age as well as his grandfather's age were equal to the last two digits of thier respective years of birth (year of birth of each person being taken as a four digit number,) then what was difference between their ages. (a) 30 (b) 40 (c) 50 (d) 60
If four women complete a piece of work in 6 days while two women and three men together complete the same piece of work in 4 days, how many men will be required to complete the same work in 3 days?
A and B got contract to paint a house for 6000Rs. On the day of work, A started the work as scehduled but B cam in an hour late and as a result they took 45 mintues more to complete the job. what would be B's share in Rs in the total amount if they had worked for an equal amount of time?
(a) 2400
(b) 3600
(c) 4000
(d) 4500
Two cans of oil cost Rs. 75/litre and Rs. 60/litre for oils of 80% and 40% concentration. When they are mixed in a certain proportion, the resulting can of oil costs Rs. 56.25. Find the concentration of the resulting mixture.
(a) 46.66%
(b) 50 %
(c) 60 %
(d) 63.33 %
(Applied method of alligation and my ratio is coming -1:5 )
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Here we come, Chennai! Gear up for the 4th edition of Chat with TISSians on 17th October, Thursday.
This is your chance to have a tete-a-tete with the students and alumni of HRM&LR, TISS Mumbai; and get to know all about the coveted course and #LifeAtTISS!
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Mr. Ram formed the greatest possible natural number using four 2’s. If no mathematical operation except exponentiation was used, what is the remainder when that number is divided by 9?
Please explain
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