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This mock test of Olympiad Test: Integers -2 for Class 7 helps you for every Class 7 entrance exam.
This contains 10 Multiple Choice Questions for Class 7 Olympiad Test: Integers -2 (mcq) to study with solutions a complete question bank.
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students definitely take this Olympiad Test: Integers -2 exercise for a better result in the exam. You can find other Olympiad Test: Integers -2 extra questions,
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QUESTION: 1

72÷? = –4

Solution:

72 ÷ x = – 4

QUESTION: 2

What is the product of additive inverse of 7 and multiplicative inverse of 14?

Solution:

Additive inverse of 7 = –7

Multiplicative inverse of

QUESTION: 3

[16–{5+(2–7)}]–[12–{7–(3–4)}]?

Solution:

[16 – {5 + (2 – 7)}] – [12 – {7 – (3 – 4)}]

= [16 – {5 – 5}] – [12 – {7 + 1}]

= [16 – 0] – [12 – 8] = 16 – 4 = 12

QUESTION: 4

[16÷{11–(2+5)}] =?

Solution:

[16 ÷ {11 – (2 + 5)}]

= [16 ÷ {11 – 7}] = [ 16 ÷ 4] = 4

QUESTION: 5

25+16÷4×3–5+7 of (–3) = ?

Solution:

25+16 ÷ 4×3 –5+7 of (–3)

= 25 + 16 ÷ 4×3 –5 + (–21)

= 25 + 4×3 –5 –21

= 25 + 12–26

= 37 – 26 = 11

QUESTION: 6

Solution:

QUESTION: 7

A cement company earns a profit of Rs 8 per bag of white cement sold and a loss of Rs 5 per bag of grey cement sold. The company sells 3000 bags of white cement and 500 bags of grey cement in a month. What is its profit or loss?

Solution:

Profit by selling white cement = 8×3000 = 24000

Loss by selling grey cement = 5×5000 = 25000

Loss = 25000 – 24000 = 1000

QUESTION: 8

In a class test containing 15 questions 4 marks are given for every correct answer and (–2) marks are given for every incorrect answer. Mohan attempts all questions but only 9 of his answers are correct. What is his total score?

Solution:

Marks for 9 correct answers = 9 × 4 = 36

Marks for 6 incorrect answers = 6 × (–2) = –12

Mohan’s total score = 36 + (–12) = 36 –12 = 24

QUESTION: 9

A shopkeeper earns a profit of Rs 1 by selling one copy and incure a loss of 40 paise per pen while selling pens of his old stock. In a particular month he incurs a loss of Rs 5. In this period he sold 45 copy. How many pens did he sell in this period?

Solution:

Profit earned by selling 45 copies = Rs 45

Total loss = Rs 5 Profit earned + loss incurred = Total loss.

⇒ 45 + Loss incurred = –5

⇒ Loss incurred = –5 – 45 = –50 = – 5000 Paise

QUESTION: 10

The temperature at 12 noon was 10°C per hour until midnight. At what time would the temp be 8°C below zero?

Solution:

10°C + x = – 8°

After 9 hours means at 9 P.M.

Temp will be –8°C.

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