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Question (11)

QN0030888

Solve: x/9 = 8.

(A) 63
(B) 72
(C) 81
(D) 90

Correct Answer: B

Explanation:

Multiply both sides by 9 to get x = 72.

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Question (12)

QN0030889

Solve: 5p + 12 = 42.

(A) 5
(B) 6
(C) 7
(D) 8

Correct Answer: B

Explanation:

5p = 30 ⇒ p = 6.

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Question (13)

QN0030890

Solve: 7k – 11 = 3k + 13.

(A) 5
(B) 6
(C) 7
(D) 8

Correct Answer: B

Explanation:

4k = 24 ⇒ k = 6.

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Question (14)

QN0030891

Solve: 4(x + 3) = 36.

(A) 5
(B) 6
(C) 7
(D) 9

Correct Answer: B

Explanation:

x + 3 = 9 ⇒ x = 6.

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Question (15)

QN0030892

A number increased by 18 becomes 45. The number is

(A) 25
(B) 26
(C) 27
(D) 28

Correct Answer: C

Explanation:

x + 18 = 45 ⇒ x = 27.

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Question (16)

QN0030893

The total cost of some pens is ₹180. Each pen costs ₹15. Which equation correctly represents the situation if the number of pens is p?

(A) 15 + p = 180
(B) 15p = 180
(C) p – 15 = 180
(D) 15/p = 180

Correct Answer: B

Explanation:

Total cost = Cost per pen × Number of pens.

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Question (17)

QN0030894

A rectangle has length (x + 5) cm. If its length is 23 cm, what is the value of x?

(A) 16
(B) 17
(C) 18
(D) 28

Correct Answer: C

Explanation:

x + 5 = 23 ⇒ x = 18.

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Question (18)

QN0030895

The number of tiles in a pattern is given by 3n + 1. If an arrangement contains 76 tiles, what is the position number?

(A) 24
(B) 25
(C) 26
(D) 27

Correct Answer: B

Explanation:

3n + 1 = 76 ⇒ n = 25.

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Question (19)

QN0030896

Riya buys some chocolates costing ₹25 each. She also pays a fixed packing charge of ₹40. If the total amount paid is ₹240, how many chocolates did she buy?

(A) 6
(B) 7
(C) 8
(D) 9

Correct Answer: C

Explanation:

25x + 40 = 240 ⇒ x = 8.

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Question (20)

QN0030897

Aman has ₹1200 in his savings account. He saves ₹150 every month. After how many months will he have ₹2100?

(A) 5
(B) 6
(C) 7
(D) 8

Correct Answer: B

Explanation:

1200 + 150m = 2100 ⇒ m = 6.

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Question (11)

Solve: x/9 = 8.

Explanation:

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Question (12)

Solve: 5p + 12 = 42.

Explanation:

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Question (13)

Solve: 7k – 11 = 3k + 13.

Explanation:

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Question (14)

Solve: 4(x + 3) = 36.

Explanation:

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Question (15)

A number increased by 18 becomes 45. The number is

Explanation:

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Question (16)

The total cost of some pens is ₹180. Each pen costs ₹15. Which equation correctly represents the situation if the number of pens is p?

Explanation:

Link:

Question (17)

A rectangle has length (x + 5) cm. If its length is 23 cm, what is the value of x?

Explanation:

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Question (18)

The number of tiles in a pattern is given by 3n + 1. If an arrangement contains 76 tiles, what is the position number?

Explanation:

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Question (19)

Riya buys some chocolates costing ₹25 each. She also pays a fixed packing charge of ₹40. If the total amount paid is ₹240, how many chocolates did she buy?

Explanation:

Link:

Question (20)

Aman has ₹1200 in his savings account. He saves ₹150 every month. After how many months will he have ₹2100?

Explanation:

Link:

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