50 green balls, 50 blue balls and 50 yellow balls are kept together in a large basket. Some students picked all the balls in the basket where it was noted that none of them picked more than one ball of the same colour.
Additional information available is:
I. The number of students picking up only green balls is 10 more than the number of students picking up only yellow balls.
II. Of all the students who picked up a blue ball, exactly 20 picked up at least one more ball.
III. The total number of balls with all the students having blue ball is 74.
What can be the minimum possible number of students?
The probabilities that a student passes in Mathematics, Physics and Chemistry are m, p, c respectively. Of these subjects, the student has a 75 % chance of passing in at least one, a 50% chance of passing in at least two and 40 % chance of passing in exactly two. Which of the following relations are true ? a. p + m + c = (19/20) b. p + m + c = (29/20) c. pmc = (1/10) d. pmc = (1/4) e. None of these
1. In a set S which has ordered psirs of the form (i,j) where 1<=i<j<=n. Foe e.g, for n=4, we have S = { (1,2),(1,3),(1,4),(2,3),(2,4),(3,4)}. Out of this (1,2) and (2,3) are cslled friends because they share a a digit/number. But, (2,3) and (1,4) are enemies because they do not hvae any element common.
For any number n, how many enemies will each member of S have?
Instead of a metre scale, a cloth merchant uses a 120 cm scale while buying, but uses an 80 cm scale while selling the same cloth. What is his overall profit percentage?
Akbar can do a piece of work in 40 days & Ajay can do the same in 60 days. Akbar works on the piece of work alone for some days. Then Ajay joins him and together they complete the work 10 days earlier than the time Akbar alone would have taken. After how many days did Ajay join Akbar ?
4 men start a job. After each day, a man leaves. The Xth man who leaves works at X units/ day. The job is completed when the last man leaves. What part of the total wages will the last man get ?
25 persons start a job of digging over an area of 330 metre square. From the 2nd day, a new person joins the group on each day. Each person digs 1 metre square per day. Find the time taken to complete the job ( in days ) .
A man started a job. Starting from the 2nd day, each day a new man joined with which the capacity of each man doubled. The job was completed in 6 days. On which day will the job be completed if the joining of a new man on a day results in each man working at thrice the rate as he did on the previous day ?
100 people standing in a circle in an order 1 to 100.
No.1 person has a sword.
He kills next person (i.e. No. 2 )and gives sword to next to next (i.e no.3).
All person does the same until only 1 survives.
Which number survives at the last ?
A rat gives birth to 3 rats (2 blue, 1 red). A blue rat gives birth to 1 blue and 1 red rat. A red rat gives birth to 2 red and 1 blue rat if it has 2 siblings, otherwise it gives birth to 1 red and 1 blue rat. find number of rat after 100 generations?
'n' is a positive integer, such that when (n^2-1) is divided by 6,it leaves a remainder of 2. Suppose 'm' is the remainder when 'n' is divided by 7. How many different values can 'm' take? OA- 7. Approach Please.
A triangle ABC circumscribes a circle of radius 3 cm. D is the pont of contact of the circle with the side AB such that AD=4 cm and DB= 6 cm. Find AC:BC. OA- 5:6 . Approach Please.
In the performane appraisal report of a company , six teams , P1,P2,P3,P4,P5,P6 were considered for evaluation. Number of employees passed in P(1,2,3,4,5)=10, in P(2,3,4,5,6)=15, in P(3,4,5,6,1)=20, in P(4,5,6,1,2)=10, P(5,6,1,2,3)=15 P(6,1,2,3,4)=10. If the number of employees who passed in all the 6 exams is 10, find the number of employees who passed in exactly 5 exams.