For the following questions answer them individually
In an army selection process, the ratio of selected to unselected candidates was 9:2. If 80 less had applied and 20 less selected, the ratio of selected to unselected would have been 5:1. How many candidates had applied for the process?
If sin 30° + cos 45° = X, then the value of X.
Product of digits of a 2-digit number is 18. If we add 63 to the number, the new number obtained is a number formed by interchange of the digits. Find the number.
The average weight of Somdev, Gurdeep and Ritu is 85 kg. If the average weight of Somdev and Gurdeep be 79 kg and that of Gurdeep and Ritu be 73 kg, then the weight of Gurdeep is
If sinC + sinD =X, then the value of X is?
4 hrs after a goods train passed a station, another train travelling at a speed of 72 km/hr following that goods train passed through that station. If after passing the station the train overtakes the goods train in 8 hours. What is the speed of the goods train?
Find co-ordinates of the mid point of the segment joining points C (3,-5) and D (-7,3).
A line passing through the origin perpendicularly cuts the line 2x + 3y = 6 at point M. Find M?
P and Q can do a project in 6 and 12 days respectively. In how many days can they complete 25% of the project if they work together?
Find the radius of the circle if the length of its arc is 33 cm whose corresponding central angle is 90° ?
