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- Question
- 84 14 13
360 24 17
What is the difference between the resultant of the first row and the second row?
Options- A. 100
- B. 46
- C. 56
- D. 90
- Correct Answer
- 46
ExplanationRules
(i) (2-digit even number) ÷ ( Even number)
(ii) (Even number) x (Prime number)
(iii) (Odd number) + (Odd number)
(iv) (3-digit number) - (2-digit perfect square number)
(v) (3-digit number) ÷ (2-digit non-perfect square number)
Solution
1st Row 84 14 13 ? 84 ÷ 14 = 6 [rule (i)]
? 6 x 13 = 78 [rule (ii)]
2nd Row 360 24 17 ? 360 ÷ 24 = 15 [rule (v)]
? 15 + 17 = 32 [rule (iii)]
? Resultant difference = 78 - 32 = 46 - 1. 14 5 9
24 w 88
If 'w' is the resultant of the first row, what will be the resultant of the second row?
Options- A. 171
- B. 283
- C. 195
- D. 107 Discuss
- 2. 73 34 13
32 p 15
If 'p' is the resultant of the first row, what will be the resultant of the second row?
Options- A. 713
- B. 50
- C. 20
- D. 525 Discuss
- 3. 7 21 3
d 7 33
If 'd' is the resultant of the first row, what will be the resultant of the second row?
Options- A. 40
- B. 138
- C. 231
- D. 80 Discuss
- 4. 24 64 15
m 11 15
If 'm' is the resultant of the first row, what is the resultant of the second row?
Options- A. 165
- B. 75
- C. 20
- D. 3 Discuss
- 5. 58 17 5
85 5 n
If 'n' is the resultant of the first row, what will be the resultant of the second row?
Options- A. 255
- B. 32
- C. 49
- D. 34 Discuss
- 6. If '+' mean '-', '-' means 'x', 'x' means '÷' and '÷' means '+', then value of 16 x 2 ÷ 25 + 7 - 4 is
Options- A. 104
- B. 5
- C. 22
- D. 4 Discuss
- 7. If '-' stands for '÷', '+' stands for 'x', '÷' stands for '-' and 'x' stands for '+', find out which one is correct?
Options- A. 49 + 7 - 3 x 5 ÷ 8 = 20
- B. 49 - 7 + 3 ÷ 5 x 8 = 24
- C. 49 x 7 + 3 ÷ 5 - 8 = 16
- D. 49 ÷ 7 x 3 + 5 - 8 = 26 Discuss
- 8. Select the correct combination of mathematical signs to replace '*' signs and to balance the following equation.
6 * 4 * 12 * 12
Options- A. ÷, -, =
- B. +, -, ÷
- C. =, -, ÷
- D. x, -, = Discuss
- 9. If 'x' stands for '+', '<' for '-', '+' for ' ÷', '>' for 'x', '-' for '=', ' ÷' for '>' and '=' for '<', then state which of the following is true?
Options- A. 3 x 4 > 2 - 9 + 3 < 3
- B. 5 x 3 < 7 ÷ 8 + 4 x 1
- C. 5 > 2 + 2 = 10 < 4 x 8
- D. 3 x 2 < 4 ÷ 16 > 2 + 4 Discuss
- 10. If '-' stands for '÷', '+' stands for '-', '÷' stands for 'x', 'x' stands for '+', then which one of the following equation is correct?
Options- A. 70 - 2 + 4 ÷ 5 x 6 = 44
- B. 70 - 2 + 4 ÷ 5 x 6 = 21
- C. 70 - 2 + 4 ÷ 5 x 6 = 341
- D. 70 - 2 + 4 ÷ 5 x 6 = 96 Discuss
Mathematical Operations problems
Search Results
Correct Answer: 107
Explanation:
Rules
(i) (Odd number) x (Composite odd number)
(ii) (Even number) + (Odd number)
(iii) (Even number) ? (Perfect square number), then (Perfect square number) - (Even number)
(iv) (Odd number) ÷ (Prime odd number)
(v) (Odd number) - (Even number)
Solution
1st Row 14 5 9 ? 14 + 5 = 19 [rule (ii)]
? 19 x 9 = 171 [rule (i)]
= w
2nd Row 24 w 88 ? 24 171 88
? 24 + 171 = 195 [rule (ii)]
? 195 - 88 = 107 [rule (v)]
? Resultant of second row = 107
Correct Answer: 525
Explanation:
Rules
(i) (Odd number) x (Composite odd number)
(ii) (Even number) + (Odd number)
(iii) (Even number) ? (Perfect square number), then (Perfect square number) - (Even number)
(iv) (Odd number) ÷ (Prime odd number)
(v) (Odd number) - (Even number)
Solution
1st Row 73 34 13 ? 73 - 34 = 39 [rule (v)]
? 39 ÷ 13 = 3 = p [rule (iv)]
2nd Row 32 p 15 ? 32 3 15
? 32 + 3 = 35 [rule (ii)]
? 35 x 15 = 255 [rule (i)]
? Resultant of second row = 525
Correct Answer: 231
Explanation:
Rules
(i) (Odd number) x (Composite odd number)
(ii) (Even number) + (Odd number)
(iii) (Even number) ? (Perfect square number), then (Perfect square number) - (Even number)
(iv) (Odd number) ÷ (Prime odd number)
(v) (Odd number) - (Even number)
Solution
1st Row 7 21 3 ? 7 x 21 = 147 [rule (i)]
? 147 ÷ 3 = 49 = d [rule (iv)]
2nd Row d 7 33 ? 49 7 33
? 49 ÷ 7 = 7 [rule (iv)]
? 7 x 33 = 231 [rule (i)]
? Resultant of second row = 231
Correct Answer: 75
Explanation:
Rules
(i) (Odd number) x (Composite odd number)
(ii) (Even number) + (Odd number)
(iii) (Even number) ? (Perfect square number), then (Perfect square number) - (Even number)
(iv) (Odd number) ÷ (Prime odd number)
(v) (Odd number) - (Even number)
Solution
1st Row 24 64 15 ? 64 - 24 = 40 [rule (iii)]
? 40 + 15 = 55 [rule (ii)]
= m
2nd Row m 11 15 ? 55 11 15
? 55 ÷ 11 = 5 [rule (iv)]
? 5 x 15 = 75 [rule (i)]
? Resultant of second row = 75
Correct Answer: 255
Explanation:
Rules
(i) (Odd number) x (Composite odd number)
(ii) (Even number) + (Odd number)
(iii) (Even number) ? (Perfect square number), then (Perfect square number) - (Even number)
(iv) (Odd number) ÷ (Prime odd number)
(v) (Odd number) - (Even number)
Solution
1st Row 58 17 5 ? 58 + 17 = 75 [rule (ii)]
? 75 ÷ 5 = 15 [rule (iv)]
= n
2nd Row 85 5 n ? 85 5 15
? 85 ÷ 5 = 17 [rule (iv)]
? 17 x 15 = 255 [rule (i)]
? Resultant of second row = 255
Correct Answer: 5
Explanation:
16 x 2 ÷ 25 + 7 - 4
= 16 ÷ 2 + 25 - 7 x 4
= 8 + 25 - 28
= 25 - 20 = 5
Correct Answer: 49 - 7 + 3 ÷ 5 x 8 = 24
Explanation:
From option (b),
49 - 7 + 3 ÷ 5 x 8 = 24
Change the sign, as per the question,
49 ÷ 7 x 3 - 5 + 8 = 24
? 7 x 3 - 5 + 8 = 24
? 21 - 5 + 8 = 24
? 24 = 24
Correct Answer: x, -, =
Explanation:
6 * 4 * 12 * 12
From option (d),
6 x 4 - 12 = 12
? 12 = 12
Correct Answer: 5 > 2 + 2 = 10 < 4 x 8
Explanation:
Using the proper symbols in (c), we get
5 x 2 ÷ 2 < 10 - 4 + 8
? 5 x 1 < 18 - 4 ? 5 < 14
which is true.
Correct Answer: 70 - 2 + 4 ÷ 5 x 6 = 21
Explanation:
Change the proper sign according to question and try all option one by one by applying the BODMAS Rule.
'-' ? ÷
'+' ? '-'
÷ ? 'x'
'x' ? '+'
? 70 ÷ 2 - 4 x 5 + 6 = 21
? 35 - 20 + 6 = 21
? 15 + 6 = 21
? 21 = 21
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