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  • Question
  • A 12 m long wire is cut into two pieces, one of which is bent into a circle and the other into a square enclosing the circle. What is the radius of the circle?


  • Options
  • A. 12/?+4
  • B. 6/?+4
  • C. 3/?+4
  • D. 6/?+2?2

  • Correct Answer
  • 6/?+4 

    Explanation
    As it is clear that 2r = a where a is the side of the square and
    R is the radius of circle
    It is given that 2?r + 4a = 12
    a = 12/(?+4)
  • Tags: Bank Exams

    Simplification problems


    Search Results


    • 1. What is the value of 2+2+2+2.......

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
    • Discuss
    • 2. If (4a +7b) (4c-7d) = (4a -7b) (4c +7d, then which one of the following is correct ?

    • Options
    • A. a/b = c/d
    • B. a/d = c/b
    • C. a/b = d/c
    • D. none
    • Discuss
    • 3. If 3x= 4y= 12 , then z is equal to

    • Options
    • A. xy
    • B. x + y
    • C. xy/x+Y
    • D. 4x +3y
    • Discuss
    • 4. If ab+c=bc+a=Cb+a then which one of the following statements is correct?

    • Options
    • A. Each fraction is equal to 1 or -1
    • B. Each fraction is equal to 1/2 or 1
    • C. Each fraction is equal to 1/2 or -1
    • D. Each fraction is equal to 1.2 only
    • Discuss
    • 5. What is the simplified value of (cos4 A ? sin4 A) ?

    • Options
    • A. 0
    • B. 2 cos2 A
    • C. cos2A
    • D. 1
    • Discuss
    • 6. Two equal circles intersect such that each passes through the centre of the other. If the length of the common chord of the circles is 10?3 cm, then what is the diameter of the circle?

    • Options
    • A. 10 cm
    • B. 15 cm
    • C. 20 cm
    • D. 30 cm
    • Discuss
    • 7. If the mean of m observations out of n observations is n and the mean of remaining observations is m, then what is the mean of all n observations?

    • Options
    • A. 2m ?m^2/n
    • B. 2m ?m/n
    • C. 2m
    • D. 2m ?m
    • Discuss
    • 8. If x + y = 5, x3 + y3 = 35 , then what is the positive difference between x and y?

    • Options
    • A. 0
    • B. 1
    • C. 5
    • D. 6
    • Discuss
    • 9. If x = 2+32-3 , then what is the value of x2+x-9 ?

    • Options
    • A. 0
    • B. 3?2
    • C. 3?3
    • D. 5?3
    • Discuss
    • 10. If x+y+z = 0, then what is the value of x23z+y33xz+z23x ?

    • Options
    • A. 0
    • B. xz
    • C. y
    • D. 3y
    • Discuss


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