Gaurav buys milk at Rs. 60 per litre, adds water to it and then sells it at Rs. 75 per litre. What should be the ratio of milk to water to get a profit of 37.5%?
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The difference between the compound and simple interest on a certain sum for 2 years at the rate of 8% per annum is Rs.80,What is the sum?
if for h hours of work the salary is s and the employee gets x hours of medical leave, then what is the salary/hr ?
What is the missing number in this series? 8 2 14 6 11 ? 14 6 18 12
4^^61 + 4^^62 + 4^^63 + 4^^64 . this sum is divisible by which of the following ?
Find the wrong number in the series: 3,5,12,39,154,772,4634
In a sports contest there were m medals awarded on n successive days (n > 1). 1. On the first day 1 medal and 1/7 of the remaining m - 1 medals were awarded. 2. On the second day 2 medals and 1/7 of the now remaining medals was awarded; and so on. 3. On the nth and last day, the remaining n medals were awarded. How many days did the contest last, and how many medals were awarded altogether?
One of the longest sides of the triangle is 20 m. The other side is 10 m. Area of the triangle is 80 m2. What is the another side of the triangle?
What is modulation &demodulation?
A person has his own coach&whenever he goes to railway station he takes his coach.One day he was supposed to reach the railway station at 5 O'clock.But he finished his work early and reached at 3 O'clock. Then he rung up his residence and asked to send the coach immediately. He came to know that the coach has left just now to the railway station. He thought that the coach has left just now to the railway station.He thought that he should not waste his time and started moving towards his residence at the speed of 3mi/hr.On the way,he gets the coach and reaches home at 6 o'clock.How far is his residence from railway station.
a watch which looses uniformly was observed to be 12 min fat at 4am.on 6th of a month.it showed 20 min less than thae correct time at 6pm on the 10th of the same month.when did the watch show correct time
three friends a,b,c run around a circular track of length 120m at a speed of 5,7,15m/sec respectively starting simultaneously from the same point in the same direction .how often they three will meet????
A team P of 20 engineers can complete a task in 32 days. Another team Q of 16 engineers can complete the same task in 30 days. Then the ratio of working capacity of 1 member of P to that of a member of Q is: