• ( 1 ) 16.001 * 11.999 * 99.989 * 0.9 = ?

    • 1) 17280
    • 2) 19140
    • 3) 21360
    • 4) 24590
    • Discussion in forum
      Answer : 1) 17280
      Solution : ? = 16 * 12 * 100 * 0.9
      ? ≈ 17280








      discussion


      Answer : 1) 17280

    • ( 2 ) 1453.9919 + 2364.0081 + 9712.4328 + 3018.6029 = ?

    • 1) 20718.883
    • 2) 18121.7668
    • 3) 16549.0357
    • 4) 14226.2431
    • Discussion in forum
      Answer : 3) 16549.0357
      Solution : 1453.9919 + 2364.0081 + 9712.4328 + 3018.6029 = ?
      14539919 + 23640081 + 97124328 + 30186029 = 165490357
      decimal place = 4
      1453.9919 + 2364.0081 + 9712.4328 + 3018.6029 = 16549.0357








      discussion


      Answer : 3) 16549.0357

    • ( 3 ) If 0.12 ÷ x2 = 12, than x = ?

    • 1) 0.001
    • 2) 0.01
    • 3) 0.1
    • 4) 1
    • Discussion in forum
      Answer : 3) 0.1
      Solution : 0.12 ÷ x2 = 12
      => 0.12/x2 = 12
      => x2 = 0.12/12 = 0.01
      => x = 0.1








      discussion


      Answer : 3) 0.1

    • ( 4 ) 999.99 + 25.012 = ? - 174.469

    • 1) 245
    • 2) 230
    • 3) 215
    • 4) 209
    • Discussion in forum
      Answer : 3) 215
      Solution : ? = (999.99)/25.012 + 174.469 ≈ (1000/25) + 174.469
      ≈ (40 + 174.469) ≈ 214.469 ≈ 215








      discussion


      Answer : 3) 215

    • ( 5 ) 475.124 * 15.98 ÷ 8.001 + 33.33 = ?

    • 1) 983.578
    • 2) 659.121
    • 3) 781.189
    • 4) 656.112
    • Discussion in forum
      Answer : 1) 983.578
      Solution : ? = 475.124 * (15.98 ÷ 8.001) + 33.33
      ≈ (475.124 * 16/8) + 33.33 ≈ 950.248 + 33.33 ≈ 983.578








      discussion


      Answer : 1) 983.578

    • ( 6 ) Which of the following is equal to 2.514 * 106 ?

    • 1) 25140
    • 2) 251400
    • 3) 2514000000
    • 4) 2514000
    • Discussion in forum
      Answer : 4) 2514000
      Solution : 2.514 * 106 = 2.514 * 1000000 = 2514000.000 = 2514000








      discussion


      Answer : 4) 2514000

    • ( 7 ) √ 441.441 + √ 256.256 = ?

    • 1) 37
    • 2) 36
    • 3) 34
    • 4) 33
    • Discussion in forum
      Answer : 1) 37
      Solution : ? = √ 441.441 + √ 256.256
      ≈ √ 441 + √ 256
      ≈ (21 + 16) ≈ 37








      discussion


      Answer : 1) 37

    • ( 8 ) The rational number for recurring decimal 0.143143 . . . . . . is:

    • 1) 143/999
    • 2) 43/994
    • 3) 14/949
    • 4) 134/100
    • Discussion in forum
      Answer : 1) 143/999
      Solution : 0.143143. . . . . . = 143/999








      discussion


      Answer : 1) 143/999

    • ( 9 ) How many digits will be there to the right of the decimal point in the product of 95.75 and .02554 ?

    • 1) 4
    • 2) 5
    • 3) 6
    • 4) 7
    • Discussion in forum
      Answer : 4) 7
      Solution : Sum of decimal places = 7.
      Since the last digit to the extreme right will be zero (since 5 * 4 = 20), so there will be 6 significant digits to the right of the decimal point.








      discussion


      Answer : 4) 7

    • ( 10 ) Solve: (96.54 - 89.63)/(96.54 + 89.63) + (965.4 - 896.3)/(9.654 + 8.963) = ?

    • 1) 1/100
    • 2) 10
    • 3) 100
    • 4) 1000
    • Discussion in forum
      Answer : 1) 1/100
      Solution : Given expressoion = (96.54 - 89.63)/(96.54 + 89.63) * (9.654 + 8.963)/(965.4 - 896.3)
      = (96.54 - 89.63)/(965.4 - 896.3) * (9.654 + 8.963)/(96.54 + 89.63)
      = (96.54 - 89.63)/10 (96.54 - 89.63) * (96.54 + 89.63)/10 (96.54 + 89.63)
      = 1/10 * 1/10 = 1/100








      discussion


      Answer : 1) 1/100





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