Top Posters
Since Sunday
s
1
r
1
D
1
g
1
g
1
A free membership is required to access uploaded content. Login or Register.

Problem Solving Practice Test 05.docx

Uploaded: 7 years ago
Contributor: Merra
Category: Economics
Type: Other
Rating: N/A
Helpful
Unhelpful
Filename:   Problem Solving Practice Test 05.docx (20.14 kB)
Page Count: 3
Credit Cost: 1
Views: 214
Last Download: N/A
Transcript
Problem Solving Practice Test 5 Question 1 6 students of nursery class are playing a game. They are standing in a circle and have to pass a ball among themselves. How many such passes are possible? 32760 15625 30 36 46656 Correct Answer : B Question 2 There are 5 boys standing in a row and 5 girls are to be paired with them for a group dance competition in a school. In how many ways can the girls be made to stand? 360 120 540 720 180 Correct Answer : B Question 3 In the editorial group’s photograph of a school all the 5 teachers are to be seated in the front row. Four girls are to be in the second row and six boys in the third row. If the principal has a fixed seat in the first row, then how many arrangements are possible? 237144 251820 502340 72000 2073600 Correct Answer : E Question 4 In how many ways can 8 people be seated at a round table? 5040 40320 2520 4914 378 Correct Answer : A Question 5 Sunita wants to make a necklace. She has 8 beads. How many different choices does she have? 2400 1200 600 250 100 Correct Answer : B Question 6 From city A to B there are 3 different roads. From B to C there are 5. From C to D there are 2. Laxman has to go from city A to D attending some work in city B and C on the way and has to come back in the reverse order. In how many ways can he complete his journey if he has to take a different while coming back than he did while going? 250 90 100 870 900 Correct Answer : D Question 7 Neetu has five identical beads each of nine different colours. She wants to make a necklace such that the beads of the same colour always come together. How many different arrangements can she have? 2534 1500 56321 42430 20160 Correct Answer : E Question 8 On a chess board one white square is chosen at random. In how many ways can a black square be chosen such that it does not lie in the same row as the white square? 1450 2920 3105 2002 1400 Correct Answer : D Question 9 How many necklaces can be made using at least 5 from 8 beads of different colours? 230 2952 5904 7695 5130 Correct Answer : B Question 10 Find the possible values of n if 30 P(n,6) = P(n+2,7). 10,15 6,7 4,25 9,10 8,19 Correct Answer : E Question 11 Using all the prime numbers less than 10 how many four-digit even numbers can be made if repetition is not allowed? 8 4 2 6 3 Correct Answer : D Question 12 There are 15 points in a plane, out of which 6 are collinear. How many pentagons can be drawn with these points? 3006 3003 2997 3005 3009 Correct Answer : C Question 13 If P(n-1,3):P(n,3) = 1:9, find n. 6 7 8 9 4 Correct Answer : D Question 14 How many four-digit numbers are there with distinct digits? 6547 10000 3600 4536 5040 Correct Answer : D Question 15 In how many ways can 9 students be seated in a row such that the tallest child and the shortest child never sit together? 564480 282240 141120 70560 23416 Correct Answer : B

Related Downloads
Explore
Post your homework questions and get free online help from our incredible volunteers
  492 People Browsing
Your Opinion
Which industry do you think artificial intelligence (AI) will impact the most?
Votes: 752

Previous poll results: Where do you get your textbooks?