In an examination of 100 questions,a student is awarded 3 for correct,-2 for wrong and -1 for un-attempted. How many differrent scores are possible?
Solution?
Anyone taking coaching in CL from Hyderabad?? Please comment, its urgent.
Ye batao thoda confused hun
a triangle has sides 13,14 and 15 cm respectively. it is rotated through 180 degrees about its centroid to form an overlapping triangle.Find the area of two triangles. Can anybody post the solution
P and Q run around a circular track in 12 minutes and 15 minutes respectively. P starts at point A and runs clockwise. Q starts at point B which is diametrically opposite to A at the same time as P starts from A and also runs clockwise. How long after they start will they be diametrically opposite each other for the second time?
Can someone help me with these four questions. Q. 22,23,24,25. Thanks in advance.
Soln
Ramesh and his son were born on the same date & age of Ramesh was 4 times that of his son when he was as old as his son is now. What could be sum of present ages of both on their birthday,if Ramesh is atleast 45 years old and his son is not more than 30 years ?
30. Soln
Need solution for all the three sums
What will b the Remainder when 7∧8 + 9∧8 is devided by 64?
Approach?
Bhai log somebody please help me understand distributions. Let's take the classic case. In how many ways can we distribute 5 balls into 3 boxes when 1)boxes identical, balls identical 2)boxes identical, balls distinct 3)boxes distinct , balls identical 4)boxes distinct , balls distinct I did go through the numerous explanations online but really couldn't wrap my head around it. Please koi samjha do 😢😢
In how many ways 4 identical red balls, 6 identical green balls and 5 identical blue balls can be arranged in a row such that all the blue balls comes together while 2 red balls are never together?
- 520
- 510
- 480
- 490
0 voters
Help please
Solution to this please
Given that y = x × [x] and ‘y’ is an integer such that 8 ≤ y ≤17. The number of positive real values of ‘x’is ([x] is the greatest integer less than or equal to ‘x’).
If, sq root(a) + sq root(b)= sq root (1949),then how many positive integral pairs of (a,b) are possible?
Options: 0/1/2/3
In a quadrilateral, if sum of opposite angles angles is 180. Can we infer that the quadrilateral is cyclic quadrilateral?