Elementary Mathematics

CLAT Class 12

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1.
Along a road lie an odd number of stones placed at intervals of 10 m. These stones have to be assembled around the middle stone. A person can carry only one stone at a time. A man carried out the job starting with the store in the middle, carrying stones in succession, there by covering a distance of 4.8 km. Then, the number of stone is:

- 35
- 15
- 31
- 29

C.

31 186 Views

3.
A group of 360 children is arranged in rows for a group photograph session. Each row contains three fewer children that the row in front of it. What number of rows is not possible?

- 3
- 4
- 5
- 6

D.

6 78 Views

5.
A speaks truth in 75% cases and B in 80% cases, In what percentage of cases are the likely to contradict eact other, narrating same incident?

- 5%
- 15%
- 35%
- 45%

C.

35% 76 Views

6.
A man has 9 friends: 4 boys and 5 girls, In how many ways can he invite them, if there have to be exactly 3 girls in the invitees?

- 320
- 160
- 80
- 200

B.

160 83 Views

8.
A die is rolled twice. what is the probability that the sum of the number on the two of the faces is 5?

- 3/13
- 4/13
- 6/13
- 1/9

D.

1/9 78 Views

9.
In a tournament here are n teams T1, T2……Tn with n>5. Each team consists of k players, k>3. The following pairs of team have one player in common T1 and T2 and T3….., Tn-1 and Tn and Tn2nd T1- No other pair of teams has any player in common. How many players are participating in the tournament, considering all the n team together?

- K (n-1)
- N (k-20)
- K (n-2)
- N (K-1)

D.

N (K-1) 73 Views

What is the value of (x) in the following equation?

x0.4/16=32/x2.6

- 8
- 9
- 6
- 7

A.

8 105 Views

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