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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. Three words in bold letters are given in each question, which have something in common among themselves. Out of the four given alternatives, choose the most appropriate description about these three words. knot: Watt: Fathom
Options- A. The terms are used by sailors.
- B. The terms are used for installing electricity.
- C. The terms are connected with rope.
- D. They are units of measurement. Discuss
- 2. Three words in bold letters are given in each question, which have something in common among themselves. Out of the four given alternatives, choose the most appropriate description about these three words. Voodoo: Sorcery: Necromancy
Options- A. They are ancient arts found in sculptures.
- B. They are terms connected with black magic.
- C. They are ancient scripts.
- D. They are means of communication of pre- historic age. Discuss
- 3. Three words in bold letters are given in each question, which have something in common among themselves. Out of the four given alternatives, choose the most appropriate description about these three words. Knight: Rook: Bishop
Options- A. These are missionaries.
- B. These are churchmen.
- C. These are chessmen.
- D. These are ranks of military. Discuss
- 4. Three words in bold letters are given in each question, which have something in common among themselves. Out of the four given alternatives, choose the most appropriate description about these three words. Rourkela: Bokaro: Durgapur
Options- A. They have steel plants.
- B. They have coal mines.
- C. They have atomic power plants.
- D. They are on the sea coast. Discuss
- 5. Three words in bold letters are given in each question, which have something in common among themselves. Out of the four given alternatives, choose the most appropriate description about these three words. Baruni: Digboi: Ankleshwar
Options- A. They are famous for oil fields.
- B. They are famous religious places.
- C. They are tourist places of South India.
- D. They are famous for handlooms. Discuss
- 6. A tree always has which of the following_______
Options- A. Shadow
- B. Leaves
- C. Branches
- D. Roots Discuss
- 7. A scenery always has ________
Options- A. Rivers
- B. Mountains
- C. Paints
- D. Composition Discuss
- 8. Some mangoes are yellow. Some tixo are mangoes. Conclusions: (i) Some mangoes are green. (ii) Tixo is a yellow.
Options- A. Only conclusion (i) follows
- B. Only conclusion (ii) follows
- C. Either (i) or (ii) follows
- D. Neither (i) nor (ii) follows Discuss
- 9. 1.Water boils at 100 degree C 2.Water freezes at 0 degree C Conclusion: At low pressure ,water boils at lower temperature The conclusion drawn is
Options- A. True
- B. false
- C. either probably true or probably false
- D. Irrelavent Discuss
- 10. Atmosphere always has
Options- A. Oxyen
- B. Air
- C. Moisture
- D. Dust Discuss
More questions
Correct Answer: They are units of measurement.
Explanation:
They are units of measurement.
The knot is a unit of speed equal to one nautical mile (1.852 km) per hour, approximately.
The Watt is a unit of power.
A fathom is a unit of length in the imperial and the U.S. customary systems equal to 6 feet (1.8288 metres).
Correct Answer: They are terms connected with black magic.
Explanation:
They are terms connected with black magic.
Correct Answer: These are chessmen.
Explanation:
All these are the pieces in the game of chess.
Correct Answer: They have steel plants.
Explanation:
They have steel plants.
Correct Answer: They are famous for oil fields.
Explanation:
They are famous for oil fields.
Correct Answer: Roots
Correct Answer: Composition
Correct Answer: Neither (i) nor (ii) follows
Correct Answer: Irrelavent
Explanation:
It is irrelavent
Correct Answer: Air
Explanation:
Clearly, though all the alternatives may form a part of the atmosphere, the air is the most vital part, without which there can be no atmosphere. So, the answer is (b).
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