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- Question
- Which sequence of mathematical symbols can replace *in the given equation to balance the equation?
7 * 7 * 2 * 1 = 12
Options- A. x - ÷
- B. + - x
- C. x - +
- D. + x -
- Correct Answer
- + - x
ExplanationGiven, 7 * 7 * 2 * 1 = 12
Let us check all the options one by one.
From option (a), putting the signs in given equation, we get
7 x 7 - 2 ÷ 1 = 12 ? 7 x 7 - 2 = 12
? 49 - 2 = 12 ? 47 = 12
? LHS ? RHS
So, option (a) is incorrect.
From option (b), putting the signs in given equation, we get
7 + 7 - 2 x 1 = 12 ? 7 + 7 - 2 = 12
? 14 - 2 = 12 ? 12 = 12
Hence, option (b) is correct and there is no need to check remaining options . - 1. King : Throne : : Judge :?
Options- A. Lawyer
- B. Bench
- C. Court
- D. Trial Discuss
- 2. Lamb : Frisk : : Mouse :?
Options- A. Trot
- B. Scamper
- C. Gallop
- D. Flit Discuss
- 3. Circle : Arc : : Square :?
Options- A. Line
- B. Triangle
- C. Sphere
- D. Rectangle Discuss
- 4. Love : Friend : : Hate :?
Options- A. Hatred
- B. Brother
- C. Enemy
- D. Companion Discuss
- 5. College : Dean : : Museum :?
Options- A. Superviser
- B. Custodian
- C. Warden
- D. Curator Discuss
- 6. Horse : Stable : : Man :?
Options- A. Woman
- B. Den
- C. Clothes
- D. House Discuss
- 7. Magazine : Editor : : Drama :?
Options- A. Director
- B. Player
- C. Manager
- D. Actor Discuss
- 8. Select the correct combination of mathematical signs to replace * signs and to balance the following equation
8 * 8 * 1 * 7 = 8
Options- A. x ÷ +
- B. + ÷ x
- C. ÷ x +
- D. + x ÷ Discuss
- 9. Statements
P < Q = R ? S ? T
Conclusions
I. T ? Q
II. R > P
Options- A. If only Conclusions I is true
- B. if only Conclusions II is true
- C. if either Conclusions I or II is true
- D. if neither Conclusions I nor II is true Discuss
- 10. 15 ÷ 9 x 3 - 74 + 2 = 5
Options- A. + and -
- B. ÷ and x
- C. + and ÷
- D. - and ÷ Discuss
More questions
Correct Answer: Bench
Explanation:
As 'king' is related to 'Judge' in the same way 'Throne' is related to 'Bench'.
Correct Answer: Scamper
Explanation:
'Frisk' is the name given to the movement of 'Lamb' similarly 'Scamper' is the name given to the movement of 'Mouse'.
Correct Answer: Line
Explanation:
As 'Arc' is a part of 'Circle', in the way 'Line' is a part of 'Square'
Correct Answer: Enemy
Explanation:
Former is received from the latter
Correct Answer: Curator
Explanation:
Second is the head of first.
Correct Answer: House
Explanation:
A ' Horse' lives in 'Stable' similarly a 'Man' lives in a 'House'
Correct Answer: Player
Explanation:
The role of 'Editor' is publishing a 'Magazine' in the same way the role of 'Director' is playing a 'Drama'.
Correct Answer: ÷ x +
Explanation:
From option (c),
8 * 8 * 1 * 7 = 8
? 8 ÷ 8 x 1 + 7 = 8
? 8 = 8
Correct Answer:
Explanation:
Statements
P < Q = R ? S ? T
Conclusions
I. T ? Q (true)
II. R > P (true)
Hence, both conclusions are definitely true.
Correct Answer: + and ÷
Explanation:
If we interchanges signs '+' and '÷', then the equation changes into
15 + 9 x 3 - 74 ÷ 2 = 15 + 27 - 37 = 5
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