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Class 7 Exam  >  Class 7 Tests  >   Olympiad Test: Mathematical Reasoning - 2 - Class 7 MCQ

Olympiad Test: Mathematical Reasoning - 2 - Class 7 MCQ


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10 Questions MCQ Test - Olympiad Test: Mathematical Reasoning - 2

Olympiad Test: Mathematical Reasoning - 2 for Class 7 2024 is part of Class 7 preparation. The Olympiad Test: Mathematical Reasoning - 2 questions and answers have been prepared according to the Class 7 exam syllabus.The Olympiad Test: Mathematical Reasoning - 2 MCQs are made for Class 7 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Olympiad Test: Mathematical Reasoning - 2 below.
Solutions of Olympiad Test: Mathematical Reasoning - 2 questions in English are available as part of our course for Class 7 & Olympiad Test: Mathematical Reasoning - 2 solutions in Hindi for Class 7 course. Download more important topics, notes, lectures and mock test series for Class 7 Exam by signing up for free. Attempt Olympiad Test: Mathematical Reasoning - 2 | 10 questions in 20 minutes | Mock test for Class 7 preparation | Free important questions MCQ to study for Class 7 Exam | Download free PDF with solutions
Olympiad Test: Mathematical Reasoning - 2 - Question 1
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By selling an item in Rs. 720, Manish gains 20%. What is its cost price?

Detailed Solution for Olympiad Test: Mathematical Reasoning - 2 - Question 1

Let x be the cost price. 
⇒ x + 20% of x = 720

Olympiad Test: Mathematical Reasoning - 2 - Question 2
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Manoj is twice as old as Monu. 3 years ago Manoj was three times as old as Monu. What is the present age of Manoj?

Detailed Solution for Olympiad Test: Mathematical Reasoning - 2 - Question 2

Let Monu’s age = x
Manoj’s age = 2x
A/Q,  2x – 3 = 3 (x – 3)
⇒ 2x – 3 = 3x – 9
⇒ 3x – 2x = 9 – 3
⇒ x = 6
∴ Present age of Manoj = 2 × 6 = 12 years. 

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Olympiad Test: Mathematical Reasoning - 2 - Question 3
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What is the product of all the numbers in the dial of a telephone?

Detailed Solution for Olympiad Test: Mathematical Reasoning - 2 - Question 3

The product of all the numbers in the dial of a telephone = 0

Olympiad Test: Mathematical Reasoning - 2 - Question 4
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At the end of a meeting the ten persons present, all shake hands with each other once. What is the total number of handshakes altogether?
Detailed Solution for Olympiad Test: Mathematical Reasoning - 2 - Question 4

Total number of handshakes
= 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1 = 45

Olympiad Test: Mathematical Reasoning - 2 - Question 5
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Direction: If + means ×, × means –, ÷ means + and ‘–‘ means ÷, then find the value in each of the following

175 – 25 ÷ 5 + 20 × 3 + 10 = ? 
Detailed Solution for Olympiad Test: Mathematical Reasoning - 2 - Question 5

175 – 25 ÷ 5 + 20 × 3 + 10
= 175 ÷ 25 + 5 × 20 – 3 × 10
= 7 + 5 × 20 – 3 × 10
= 7 + 100 – 30
= 107 – 30 = 77

Olympiad Test: Mathematical Reasoning - 2 - Question 6
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Direction: If + means ×, × means –, ÷ means + and ‘–‘ means ÷, then find the value in each of the following

225 – 15 + 9 × 15 ÷ 3 = ? 
Detailed Solution for Olympiad Test: Mathematical Reasoning - 2 - Question 6

225 – 15 + 9 × 15 ÷ 3
= 225 ÷ 15 × 9 – 15 + 3
= 15 × 9 – 15 + 3
= 135 – 15 + 3 = 123 

Olympiad Test: Mathematical Reasoning - 2 - Question 7
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Direction: If + means ×, × means –, ÷ means + and ‘–‘ means ÷, then find the value in each of the following

23 ÷ 107 × 135 – 5 + 3 = ? 
Detailed Solution for Olympiad Test: Mathematical Reasoning - 2 - Question 7

23 ÷ 107 × 135 – 5 + 3
= 23 + 107 – 135 ÷ 5 × 3
= 23 + 107 – 27 × 3
= 23 + 107 – 81
= 130 – 81 = 49 

Olympiad Test: Mathematical Reasoning - 2 - Question 8
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Direction: If + means ×, × means –, ÷ means + and ‘–‘ means ÷, then find the value in each of the following

297 × 57 × 345 – 15 + 11 ÷ 18 
Detailed Solution for Olympiad Test: Mathematical Reasoning - 2 - Question 8

297 × 57 × 345 – 15 + 11 ÷ 18
= 297 – 57 – 345 ÷ 15 × 11 + 18
= 297 – 57 – 23 × 11 + 18
= 297 – 57 – 253 + 18
= 315 – 310 = 5 

Olympiad Test: Mathematical Reasoning - 2 - Question 9
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Direction: If + means ×, × means –, ÷ means + and ‘–‘ means ÷, then find the value in each of the following

78 – 13 + 7 × 6 ÷ 17 + 3 
Detailed Solution for Olympiad Test: Mathematical Reasoning - 2 - Question 9

78 – 13 + 7 × 6 ÷ 17 + 3
= 78 ÷ 13 × 7 – 6 + 17 × 3
= 6 × 7 – 6 + 17 × 3
= 42 – 6 + 51
= 93 – 6 = 87

Olympiad Test: Mathematical Reasoning - 2 - Question 10
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Direction: If + means ×, × means –, ÷ means + and ‘–‘ means ÷, then find the value in each of the following

123 × 4 + 7 ÷ 76 – 19 + 7 
Detailed Solution for Olympiad Test: Mathematical Reasoning - 2 - Question 10

123 × 4 + 7 ÷ 76 – 19 + 7
= 123 – 4 × 7 + 76 ÷ 19 × 7
= 123 – 4 × 7 + 4 × 7
= 123 – 28 + 28
= 123

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