In a class, there are 15 boys and 10 girls. Three students are selected at random. The probability that 1 girl and 2 boys are selected, is:
21/46
25/117
1/50
3/25
Additional Questions
|
If log 27 = 1.431, then the value of log 9 is: |
Answer |
|
The bankers gain on a sum due 3 years hence at 12% per annum is Rs. 270. The bankers discount is: |
Answer |
|
A man buys Rs. 20 shares paying 9% dividend. The man wants to have an interest of 12% on his money. The market value of each share is: |
Answer |
|
A man standing at a point P is watching the top of a tower, which makes an angle of elevation of $30^\circ$ with the mans eye. The man walks some distance towards the tower to watch its top and the angle of the elevation becomes $60^\circ$. What is the distance between the base of the tower and the point P? |
Answer |
|
What is the difference between the compound interests on Rs. 5000 for 1 1/2 years at 4% per annum compounded yearly and half-yearly? |
Answer |
|
Excluding stoppages, the speed of a bus is 54 kmph and including stoppages, it is 45 kmph. For how many minutes does the bus stop per hour? |
Answer |
|
A sum fetched a total simple interest of Rs. 4016.25 at the rate of 9 p.c.p.a. in 5 years. What is the sum? |
Answer |
|
The average of 20 numbers is zero. Of them, at the most, how many may be greater than zero? |
Answer |
|
Look at this series: 2, 1, (1/2), (1/4), what number should come next? |
Answer |
|
Look at this series: 36, 34, 30, 28, 24, … What number should come next? |
Answer |