For the following questions answer them individually
In how many years will a sum of Rs. 800 at 10% per annum compound interest, compounded semiannually becomes Rs. 926.10 ?
In a 100m race, Kamal defeats Bimal by 5 seconds. If the speed of Kamal is 18 Kmph, then the speed of Bimal is
A train, 240 in long crosses a man walking along the line in opposite direction at the rat4 of 3 kmph in 10 seconds. The speed of the train is
A boatman rows 1 km in 5 minutes, along the stream and 6 km in I hour against the stream. The speed of the stream is
A can complete 1/3 of a work in 5 days and B, 2/5 of the work in 10 days. In how many days both A and B together can complete the work ?
7 men can complete a piece of work in 12 days. How many additional men will be required to complete double the work in 8 days ?
One pipe fills a water tank three times faster than another pipe. If the two pipes together can fill the empty tank in 36 minutes, then how much time will the slower pipe alone take to fill the tank ?
In an examination, a student scores 4 marks for every correct answer and loses 1 mark for every wrong answer. A student attempted tempted all the 200 questions and scored, in all 200 marks. The number of questions, he answered correctly was
If A's income is 25% less than B's income, by how much per cent is B's income more than that of A ?