GD : Mathematics :: Algebra

20 Questions
1.
1/8 - 1/9 = ?
  • A

    1/72

  • B

    1/36

  • C

    3/72

  • D

    7/72

2.
If x is multiplied by 6 and 9 subtracted, the result is the same as when x is multiplied by 4 and 11 added, the number is
  • A

    11

  • B

    10

  • C

    12

  • D

    None of these

3.
The average marks of 4 men is increased by 3 when one of them whose marks are 120 is replaced by another man. What is the marks of new men ?
  • A

    123

  • B

    124

  • C

    132

  • D

    133

4.
The product of two number is 216 and their HCF is 3, what is their LCM
  • A

    648

  • B

    219

  • C

    213

  • D

    72

5.
If 3/4 x = 48, the value of x is
  • A

    16

  • B

    64

  • C

    40

  • D

    72