Let the capacity of the tank be 120 litres {LCM (30 and 40)} Efficiency of pipe ‘A’ = 120 ÷ 30 = 4 litres/hour Efficiency of leak ‘A’ = 120 ÷ 40 = 3 litres/hour Combined efficiency of pipe ‘A’ and leak ‘A’ = 4 – 3 = 1 litre/hour Combined efficiency of pipe ‘A’, ‘B’ and leak ‘A’ = 120 ÷ 15 = 8 units/hour Efficiency of pipe ‘B’ = 8 – 1 = 7 units/hour Time taken by pipe ‘B’ and leak ‘A’ to fill the tank = 120 ÷ (7 – 3) = 30 hours
Select the correct water image of the given figure.
From the given question, find which figure comes after the four figures which are in series?
If the sign ‘×’ is interchanged with ‘÷’ and ‘–’ is interchanged with ‘+’, then what will be the value of the expression below?
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The sequence of folding a piece of paper and the manner in which the folded paper has been cut is shown below. Choose a figure which would most closely ...
Select the option that will fill in the blank and complete the given series.
7, 9, 13, 21, __________
Choose the right water image of the given question from the given options.
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In each of the given number-clusters, the number on the right side of = (the equal to sign) is calculated by performing certain mathematical operations ...