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Home Aptitude Simplification Comments

  • Question
  • Find x, if 5x-6+5x+6 = 6


  • Options
  • A. -4
  • B. 0
  • C. 2
  • D. 4

  • Correct Answer


  • Tags: Bank Exams

    Simplification problems


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    • 1. If x + (1/x) = 2, then what is the value of x21 + (1/x1331) ?

    • Options
    • A. 0
    • B. 1
    • C. 2
    • D. 3
    • Discuss
    • 2. What is the simplified value of (sec4 A ? tan2 A) ? (tan4 A + sec2 A) ?

    • Options
    • A. -1
    • B. 1/2
    • C. 1
    • D. 0
    • Discuss
    • 3. What is the simplified value of [2/(cot A ? tan A)]?

    • Options
    • A. sin A cos A
    • B. tan 2A
    • C. sin2 A
    • D. cos2 A
    • Discuss
    • 4. If (x/5) + (5/x) = ? 2, then what is the value of x3 ?

    • Options
    • A. ?125
    • B. 5
    • C. 1/125
    • D. 625
    • Discuss
    • 5. If a + b + c = 11 and ab + bc + ca = 17, then what is the value of a3 + b3 + c3 ? 3abc ?

    • Options
    • A. 121
    • B. 168
    • C. 300
    • D. 770
    • Discuss
    • 6. When [x + (1/x)] = 5, then what is the value of [x ? (1/x)]?

    • Options
    • A. 11
    • B. ± ?22
    • C. 21
    • D. ± ?21
    • Discuss
    • 7. If x = (?2 + 1)/(?2 ? 1), then what is the value of (x5 + x4 + x2 + x)/x3 ?

    • Options
    • A. 5
    • B. 2
    • C. 2?3
    • D. 2?2
    • Discuss
    • 8. If 27x + 27[x?(1/3)] = 972, then what is the value of x?

    • Options
    • A. 2
    • B. 3
    • C. 4
    • D. 5
    • Discuss
    • 9. The inradius of a equilateral triangle is 10 cm. What is the circum-radius (in cm) of the same triangle?

    • Options
    • A. 5
    • B. 10?3
    • C. 20
    • D. 20?3
    • Discuss
    • 10. If a = 73, b = 74 and c = 75, then what is the value of a3 + b3 + c3 ? 3abc ?

    • Options
    • A. 365
    • B. 444
    • C. 666
    • D. 999
    • Discuss


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