Discussion
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- Question
- After interchanging + and -, 8 and 7, which one of the following becomes correct?
Options- A. 7 x 8 + 6 - 9 = 25
- B. 8 - 7 + 3 x 5 = 35
- C. 6 + 8 x 2 - 7 = 0
- D. 8 x 2 + 7 - 6 = 9
- Correct Answer
- 6 + 8 x 2 - 7 = 0
ExplanationAfter changing '+' and '-' , 8 and 7 the appropriate equation is,
6 + 8 x 2 - 7 = 0
L.H.S. = 6 - 7 x 2 + 8
6 - 14 + 8
14 - 14 = 0 = R.H.S. - 1. If, + stand for division; x stands for addition; stands for multiplication; ÷ stands for subtraction, which of the following is correct?
Options- A. 46 x 6 ÷ 4 - 5 + 3 = 74
- B. 46 - 6 + 4 x 5 ÷ 3 = 71
- C. 46 ÷ 6 x 4 - 5 + 3 = 75.5
- D. 46 x 6 - 4 + 5 ÷ 3 = 70.1 Discuss
- 2. If > denotes +, < denotes - , + denotes ÷ , ^ denotes x , - denotes = , x denotes > and = denotes < , choose the correct statement of the following :
Options- A. 13 > 7 < 6 + 2 = ^ 4
- B. 9 > 5 > 4 - 18 + 9 > 16
- C. 9 < 3 < 2 > 1 x 8 ^ 2
- D. 28 + 4 ^ 2 = 6 ^ 4 + 2 Discuss
- 3. If L denotes x
M denotes ÷
P denotes +
Q denotes -
then 16 P 24 M 8 Q 6 M 2 L 3 =?
Options- A. 10
- B. 9
- C. 12
- D. 11 Discuss
- 4. 72 ? 27 ? 99
Options- A. 65
- B. 52
- C. 47
- D. 0 Discuss
- 5. 17 ? 12 $ 3
Options- A. 98
- B. 87
- C. 75
- D. 68 Discuss
- 6. If + stands for division; x stands for addition; - stands for multiplication, ÷ stands for subtraction, Which of the following is correct?
Options- A. 25 x 3 - 7 ÷ 8 + 12 = 18
- B. 25 + 3 x 7 - 8 ÷ 12 = 10.89
- C. 25 - 3 ÷ 7 x 8 + 12 = 132
- D. 25 ÷ 3 x 7 - 8 + 12 = 19.3 Discuss
- 7. Statements:
N = P, P < F, F > L, L = k
Conclusions:
I. F = K II. F > K
Options- A. If only conclusion I follows
- B. If only conclusion II follows
- C. If either conclusion I or II follows
- D. If neither conclusion I nor II follows Discuss
- 8. Statements:
Z > T, T < M, M < J
Conclusions:
I. T < J II. J < Z
Options- A. If only conclusion I follows
- B. If only conclusion II follows
- C. If either conclusion I or II follows
- D. If neither conclusion I nor II follows Discuss
- 9. Statements:
Q = Z, C ? G, G ? Q, Q ? R
Conclusions:
I. G ? Z II. C ? R
Options- A. If only conclusion I follows
- B. If only conclusion II follows
- C. If either conclusion I or II follows
- D. If neither conclusion I nor II follows Discuss
- 10. Statements:
K < L, K > M, M ? N, N > O
Conclusions:
I. O < M II. O < K
Options- A. If only conclusion I follows
- B. If only conclusion II follows
- C. If either conclusion I or II follows
- D. If neither conclusion I nor II follows Discuss
Mathematical Operations problems
Search Results
Correct Answer: 46 - 6 + 4 x 5 ÷ 3 = 71
Explanation:
After changing '+' = ÷ , '-' = x
'x' = '+' '÷' = -
the equation, 46 - 6 + 4 x 5 ÷ 3 = 71
CHS = 46 x 6 ÷ 4 + 5 - 3
= 276 ÷ 4 + 5 - 3
= 69 + 5 - 3
= 74 - 3 = 71 R.H.S.
Correct Answer: 9 > 5 > 4 - 18 + 9 > 16
Explanation:
9 + 5 + 4 = 18 ÷ 9 + 16 = 18 = 18
Correct Answer: 10
Explanation:
10
Correct Answer: 0
Explanation:
72 ? 27 ? 99
After interchanging the signs,
72 + 27 - 99
Apply the BODMAS Rule.
= 99 - 99 = 0
Correct Answer: 68
Explanation:
Given, 17 ? 12 $ 3
After interchanging the sign,
17 x 12 ÷ 3
Apply the BODMAS Rule
= 17 x 4 = 68
Correct Answer: 25 ÷ 3 x 7 - 8 + 12 = 19.3
Explanation:
25 ÷ 3 x 7 - 8 + 12 = 19.3
Correct Answer: If either conclusion I or II follows
Explanation:
N = P ? F ? L = K
Hence F ? K. Which means either
I (F = K) or II (F > K) follows
Correct Answer: If only conclusion I follows
Explanation:
Z > T < M < J
Which means T < J. Hence I follows.
But Z and J can't be compared. Hence II does not follow.
Correct Answer:
Explanation:
C ? G ? Q = Z ? R
Hence G ? Z and I follows.
Also C ? R and II follows.
Correct Answer:
Explanation:
L > K > M ? N > O
Hence O < M and I follows.
Also O < K and II follows.
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