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Question (11)

QN0032356

Group A: 17, 19, 24 (Sum = 60) and Group B: 20, 21, 25 (Sum = 66). Which pair should be swapped?

(A) 17 and 20
(B) 19 and 21
(C) 24 and 25
(D) 17 and 25

Correct Answer: A

Explanation:

Swapping 17 and 20 makes both sums 63.

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Question (12)

QN0032357

Why should we try to use the least number of interchanges?

(A) To make the activity quicker and more efficient
(B) To increase the sums
(C) To decrease all numbers
(D) To avoid addition

Correct Answer: A

Explanation:

Fewer moves make the solution more efficient.

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Question (13)

QN0032358

Group A has sum 91 and Group B has sum 99. The exchanged numbers should differ by

(A) 2
(B) 4
(C) 8
(D) 16

Correct Answer: B

Explanation:

Difference between sums is 8, so the exchanged numbers differ by 4.

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Question (14)

QN0032359

Group A: 13, 22, 25 (Sum = 60) and Group B: 15, 23, 28 (Sum = 66). Which swap balances the sums?

(A) 13 and 15
(B) 22 and 23
(C) 25 and 28
(D) 13 and 28

Correct Answer: A

Explanation:

Swapping 13 and 15 makes both sums 63.

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Question (15)

QN0032360

After exchanging one number from each group, what always changes?

(A) The number of groups
(B) The sums of both groups
(C) The total number of numbers
(D) The order of questions

Correct Answer: B

Explanation:

Exchanging numbers changes the sums of both groups.

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Question (16)

QN0032361

Group A: 18, 24, 28 (Sum = 70) and Group B: 21, 25, 30 (Sum = 76). Which pair should be interchanged?

(A) 18 and 21
(B) 24 and 25
(C) 28 and 30
(D) 18 and 30

Correct Answer: A

Explanation:

Swapping 18 and 21 makes both sums 73.

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Question (17)

QN0032362

If the difference between the sums is 14, the exchanged numbers must differ by

(A) 5
(B) 6
(C) 7
(D) 14

Correct Answer: C

Explanation:

Half of 14 is 7.

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Question (18)

QN0032363

Group A: 16, 20, 27 (Sum = 63) and Group B: 19, 22, 28 (Sum = 69). Which swap makes the sums equal?

(A) 16 and 19
(B) 20 and 22
(C) 27 and 28
(D) 16 and 28

Correct Answer: A

Explanation:

Swapping 16 and 19 makes both sums 66.

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Question (19)

QN0032364

Which statement is correct?

(A) Numbers can only be added.
(B) Numbers are interchanged between the two groups.
(C) Numbers are multiplied.
(D) Numbers are divided equally.

Correct Answer: B

Explanation:

The activity involves exchanging numbers between two groups.

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Question (20)

QN0032365

Group A: 12, 17, 31 (Sum = 60) and Group B: 15, 20, 31 (Sum = 66). Which pair should be interchanged?

(A) 12 and 15
(B) 17 and 20
(C) 31 and 31
(D) 12 and 31

Correct Answer: A

Explanation:

Swapping 12 and 15 makes both sums 63.

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Question (11)

Group A: 17, 19, 24 (Sum = 60) and Group B: 20, 21, 25 (Sum = 66). Which pair should be swapped?

Explanation:

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Question (12)

Why should we try to use the least number of interchanges?

Explanation:

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Question (13)

Group A has sum 91 and Group B has sum 99. The exchanged numbers should differ by

Explanation:

Link:

Question (14)

Group A: 13, 22, 25 (Sum = 60) and Group B: 15, 23, 28 (Sum = 66). Which swap balances the sums?

Explanation:

Link:

Question (15)

After exchanging one number from each group, what always changes?

Explanation:

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Question (16)

Group A: 18, 24, 28 (Sum = 70) and Group B: 21, 25, 30 (Sum = 76). Which pair should be interchanged?

Explanation:

Link:

Question (17)

If the difference between the sums is 14, the exchanged numbers must differ by

Explanation:

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Question (18)

Group A: 16, 20, 27 (Sum = 63) and Group B: 19, 22, 28 (Sum = 69). Which swap makes the sums equal?

Explanation:

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Question (19)

Which statement is correct?

Explanation:

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Question (20)

Group A: 12, 17, 31 (Sum = 60) and Group B: 15, 20, 31 (Sum = 66). Which pair should be interchanged?

Explanation:

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