The diameters of three inlet pipes of a cistern are 1.5 cm, 2 cm and 2.5 cm respectively. The pipe with the maximum diameter can alone fill up the cistern in 3 hours and 36 minutes. Find the time in which the empty cistern will be filled if all the three inlet pipes are opened together.
Diameters of three inlet pipes of a cistern = 1.5 : 2 : 2.5 = 3:4:5 Ratio of efficiency will be = Square of diameter => 9 : 16 : 25 Total work = Time x Maximum diameter efficiency = 216 min x 25 If all three work = (216 x 25)/50(9+16+25) = 108 min = 1 hour 48 min
In the following question, select the wrong number from the given alternatives.
43, 50, 64, 85, 113, 138
Select the wrong term in the series.
44, 47, 41, 50, 38, 53, 40
In the following question, select the wrong number from the given alternatives.
52, 26, 26, 52, 208, 1644
Find the wrong number.
17, 25, 37, 47, 65, 81
In the following question, select the wrong number from the given alternatives.
48, 50, 52, 57, 59, 68, 75
Select the wrong term from the given series?
RFD, OBY, LXT, ITO, FSK
Select the number from among the given options that is wrong in the following series.
22, 30, 46, 78, 146, 270
Find the wrong number in the given series.
5, 3, 6, 17.25, 64.75
3. 8, 15, 24, 34, 48, 63
Find the wrong term in the series given below.
38, 44, 32, 50, 24, 56, 20
