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Start learning 50% faster. Sign in nowLet the capacity of the tank be 150 litres {LCM (25 and 30)} Efficiency of pipe ‘A’ = 150 ÷ 25 = 6 litres/hour Efficiency of leak ‘A’ = 150 ÷ 30 = 5 litres/hour Combined efficiency of pipe ‘A’ and leak ‘A’ = 6 – 5 = 1 litre/hour Combined efficiency of pipe ‘A’, ‘B’ and leak ‘A’ = 150 ÷ 15 = 10 units/hour Efficiency of pipe ‘B’ = 10 – 1 = 9 units/hour Time taken by pipe ‘B’ and leak ‘A’ to fill the tank = 150 ÷ (9 – 5) = 37.5 hours
Select the correct mirror image of the given figure when the mirror is placed at MN as shown below.
Four words have been given, out of which three are alike in some manner and one is different. Select the odd one.
Study the given pattern carefully and select the letter from among the given options that can replace the question mark (?)
For an integer n, n!=n.(n-1).(n-2). ... 3.2 .1. Then 1! +2!+3!+...+ 100! when divided by 5 leaves remainder _________.
Select the number from among the given options that can replace the question mark (?) in the following series.
23, 27, 43, 79, 143, ?
In the following question, select the related letters from the given alternatives.
MICS : LHBR :: JRVP : ?
Varun, Anwar, Prachi, Fatima and Disha are sitting on a bench. Varun who is not sitting at extreme corners is sitting to the left of Anwar. Fatima is si...
Below are given statements followed by two conclusions I and II. You have to take the given statements to be true even if they seem to be at variance fr...
Six people A, B, C, D, E and F are sitting around a circular table facing the centre. B sits second to the right of E. C sits to the immediate left of E...
161 is related to 23 following a certain logic. Following the same logic, 301 is related to 43. To which of the following is 427 related following the s...
