Let capacity of the tank = 18 litres (lcm of 6 and 9) Efficiency of pipe ‘A’ = (18/6) = 3 litres/hour Efficiency of pipe ‘B’ = (18/9) = 2 litres/hour Efficiency of all the three pipes together = (18/4.5) = 4 litres/hour Efficiency of pipe ‘C’ = 4 – (3 + 2) = (-1) litre/hour {Negative sign shows that pipe ‘C’ is an outlet pipe} Required time taken = {(2/3) × 18)}/1 = 12 hours
906 ___ 6 ___ `sqrt1225` ___ 500 ___ 850 = 4,935
The remainder obtained when (47³ + 35³) is divided by 41 is
The sum of three consecutive even numbers is 28 more than the average of these three numbers. Then the smallest of these three numbers is
The greater of the two numbers whose product is 900 and sum exceeds their difference by 30 is
197 ___ 32 ___ 16² ___ 45 ___ 15 = 6,557
A man invested a sum of money at compound interest. It amounted to Rs. 2420 in 2 years and to Rs. 2662 in 3 years. Find the sum.
Rs.2420 were divided among A, B, C so that A: B=5 : 4 and B : C = 9 : 10 then C gets
Which of the following is the correct order?
Two men and 7 women can complete a work in 28 days whereas 6 men and 16 women can do the same work in 11 days. In how many days can 7 men complete the s...
The daily wages of A and B respectively are Rs.3.50 and 2.50. When A finishes a certain work, he gets a total wage of Rs. 63. When B does the same work,...
