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Question (11)

QN0029943

If a = 84 − 29 + 15 and b = 84 − (29 − 15), then:

(A) a > b
(B) a < b
(C) a = b
(D) Cannot be determined

Correct Answer: C

Explanation:

b = 84 − 29 + 15 after removing brackets. Hence both expressions are equal.

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Question (12)

QN0029944

A snail climbs 5 cm during the day and slips 2 cm at night. What is its net gain in height after 8 complete days and nights?

(A) 24 cm
(B) 16 cm
(C) 40 cm
(D) 56 cm

Correct Answer: A

Explanation:

Net gain per day = 5 − 2 = 3 cm. In 8 days = 24 cm.

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Question (13)

QN0029945

Which of the following is NOT equal to 62 + (−15) − 8?

(A) 62 − 15 − 8
(B) −15 + 62 − 8
(C) 62 − (15 + 8)
(D) 62 + 15 − 8

Correct Answer: D

Explanation:

+ (−15) means subtract 15, not add 15.

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Question (14)

QN0029946

The value of 36 − [12 − (5 + 1)] is:

(A) 18
(B) 24
(C) 30
(D) 36

Correct Answer: C

Explanation:

5 + 1 = 6, then 12 − 6 = 6, and 36 − 6 = 30.

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Question (15)

QN0029947

Which comparison is correct?

(A) 45 × (18 − 7) < 44 × (19 − 8)
(B) 45 × (18 − 7) > 44 × (19 − 8)
(C) Both are equal
(D) Cannot be compared

Correct Answer: B

Explanation:

Both brackets equal 11. Compare 45 × 11 and 44 × 11.

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Question (16)

QN0029948

A shopkeeper sells 18 notebooks at ₹35 each and 12 pens at ₹10 each. Which expression gives the total amount collected?

(A) 18 × (35 + 12) × 10
(B) 18 × 35 + 12 × 10
(C) (18 + 12) × 35
(D) 35 + 10

Correct Answer: B

Explanation:

Total collection = notebook collection + pen collection.

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Question (17)

QN0029949

Which expression equals 92 − 37 − 15?

(A) 92 − (37 − 15)
(B) 92 + (−37) + (−15)
(C) 92 + 37 − 15
(D) 92 − (−37) − 15

Correct Answer: B

Explanation:

Subtraction can be rewritten as addition of negative numbers.

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Question (18)

QN0029950

The value of 8 × (14 + 11) − 8 × 14 is:

(A) 25
(B) 88
(C) 112
(D) 200

Correct Answer: B

Explanation:

Using distributive property: 8(14 + 11) − 8(14) = 8 × 11 = 88.

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Question (19)

QN0029951

A library is open 6 days a week. A student borrows 3 books each open day. How many books can the student borrow in 9 weeks?

(A) 54
(B) 162
(C) 27
(D) 72

Correct Answer: B

Explanation:

Books per week = 6 × 3 = 18. In 9 weeks = 18 × 9 = 162.

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Question (20)

QN0029952

Which of the following expressions has the greatest value?

(A) is the intended answer.
(B) = 55,
(C) = 95,
(D) = 55. The greatest value is 95. Option

Correct Answer: A

Explanation:

(a) = 95, (b) = 55, (c) = 95, (d) = 55. The greatest value is 95. Option (a) is the intended answer.

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Question (11)

If a = 84 − 29 + 15 and b = 84 − (29 − 15), then:

Explanation:

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Question (12)

A snail climbs 5 cm during the day and slips 2 cm at night. What is its net gain in height after 8 complete days and nights?

Explanation:

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Question (13)

Which of the following is NOT equal to 62 + (−15) − 8?

Explanation:

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Question (14)

The value of 36 − [12 − (5 + 1)] is:

Explanation:

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Question (15)

Which comparison is correct?

Explanation:

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Question (16)

A shopkeeper sells 18 notebooks at ₹35 each and 12 pens at ₹10 each. Which expression gives the total amount collected?

Explanation:

Link:

Question (17)

Which expression equals 92 − 37 − 15?

Explanation:

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Question (18)

The value of 8 × (14 + 11) − 8 × 14 is:

Explanation:

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Question (19)

A library is open 6 days a week. A student borrows 3 books each open day. How many books can the student borrow in 9 weeks?

Explanation:

Link:

Question (20)

Which of the following expressions has the greatest value?

Explanation:

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