How many three digits numbers have digital sum of 9.
I am getting 28 , Ans i dont know ..
Find the minimum length of the string wound on a cylinder of height 48 cm and the base diameter of cm.The string makes exactly four complete turns round the cylinder while its two ends touch the cylinder's top and bottom.
solultion plz?
On a planet called Paturn a day has only 6 hours. The number of minutes in each of the 6 hours are distinct integers from 1 to 6, in no particular order (e.g. the 2nd hour can have 4 minutes while the 6th hour can have just 1 minute). There is no other difference in the time systems of Earth and Paturn. Some of the valid times shown by a watch on Paturn are: 00:00 01:04 02:03 03:01 04:02 05:03 What is the number of minutes in the 5th hour of the day?
- 4
- CBD
- 3
- 2
0 voters
If (30! + 31! + 32! + 33! + 34! + .....99!) when divided by 4n leaves a non-zero remainder, what is the least value of n?
How many pairs of real number (x,y) satisfy (x+y)^2 = (x-3) * (y-3) ?
seven delegates are to address a meeting.If a particular speaker is to speak before another particular speaker,Find the number of ways in which this can be arranged.?
a) 1220 b)2520
c)3250 c)7826
pls post approach.?
The equation x^2 + ax + (b + 2) = 0 has real roots. What is the minimum value of a^2 + b^2?
i don’t have OA
- 2
- 4
- 0
- 1
0 voters
A cuboid has a total surface area of A. It was cut into 120 identical cubes. If the total surface area of the these cubes is KA, what is the least possible value of K?
In how many ways three couples sit around a circular table such that no pair of wife and husband are opposite each other ??
how many proper factors of 21! are not factors of 20!
A, B, C ,D, E are five horses participating in horse-race. What is the probability that C will be ranked higher than B, who in turn will be ranked higher than A ??
can somebody manually explain all the 20 cases???
If 3a+6b+9c+4d = 100 and a ,b,c and d are natural numbers , then how many values d can take .
Area of a quadrilateral, given that A(-2,3), B(4,11), C(22,11), D(16,3)
A number when divided by 5 leaves a remainder 3. What is the remainder when the square of the same no is divided by 5??
Options- 9, 3, 0, 4
Plz explain d ans
A and B are running on a circular track of length 3km in the clockwise direction. A laps B in the middle of A's 7th lap. If they are racing on a 100m dash, find the head start that A has to give B so that they finish the race in a dead heat?
a) 15(5/13) m b) 15(7/13)m c) 17 (2/11)m
A no when successively divided by 7 and 8 leaves the remainder 3 and 5. Whai is d remainder when the same number is divided by 56???
Options 38, 31, 37, 26