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  • Question
  • In a certain code language, 'x' represents '+', '÷' represents 'x', '-' represents '÷' and '+' represents '-'. Find out the answer to the following question. 5 + 10 x 21 ÷ 5 - 15 = ?


  • Options
  • A. 49
  • B. 2
  • C. 20
  • D. 34

  • Correct Answer


  • Tags: Bank Exams

    Mathematical Operations problems


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    • 1. Which of the following interchanges in signs and numbers will make the given equation correct? 8 x 9 + 2 = 74

    • Options
    • A. x and =, 2 and 9
    • B. x and +, 8 and 2
    • C. + and x, 8 and 9
    • D. + and =, 74 and 2
    • Discuss
    • 2. If "+" means "minus", "x" means "divided by", "÷" means "plus" and "-" means "multiplied by", then 38 x 2 ? 6 + 19 ÷ 35 = ?

    • Options
    • A. 130
    • B. 140
    • C. 135
    • D. 145
    • Discuss
    • 3. In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question? 25 + 10 ÷ 240 x 16 = ?

    • Options
    • A. 85
    • B. 235
    • C. 12
    • D. 20
    • Discuss
    • 4. If 4 x 9 x 3 = 4 and 5 x 3 x 1 = 3, then 9 x 9 x 7 = ?

    • Options
    • A. 5
    • B. 6
    • C. 7
    • D. 9
    • Discuss
    • 5. In the following question, correct the equation by interchanging two signs. 6 + 8 ÷ 4 ? 4 = 8

    • Options
    • A. ÷ and =
    • B. ÷ and +
    • C. ÷ and ?
    • D. + and ?
    • Discuss
    • 6. The following equation is incorrect. Which two signs should be interchanged to correct the equation? 10 x 4 + 5 - 30 ÷ 6 = 31

    • Options
    • A. x and -
    • B. ÷ and -
    • C. + and ÷
    • D. - and +
    • Discuss
    • 7. In this question, some equations are solved on the basis of a certain system. On the same basis find out the correct answer from amongst the four alternatives for the unsolved equation. 15 x 26 = 6512 29 x 36 = 6923, 46 x 54 = ?

    • Options
    • A. 5464
    • B. 4645
    • C. 4564
    • D. 4465
    • Discuss
    • 8. In the following problem, '=' stands for '÷' , '+' stands for '' , 'x' stands for '=', '' stands for '+' and '÷' stands for 'x'. Find the correct equation.

    • Options
    • A. 8 ÷ 4 + 1 - 5 = 6 x 4
    • B. 4 x 6 ÷ 4 + 4 = 7
    • C. 5 ÷ 3 - 25 + 20 = 20 x 39
    • D. 96 ÷ 2 x 6 ÷105 + 1
    • Discuss
    • 9. If (?) stands for division, (+) stands for multiplication, (÷) stands for subtraction and (×) stands for addition, which one of the following equations is correct?

    • Options
    • A. 100+5?10×250÷200 = 100
    • B. 200+10?20×200÷100 = 150
    • C. 50×5÷10+100?75 = 50
    • D. 300+5?20×200÷100 = 200
    • Discuss
    • 10. If, 4x3=14; 5x4=18; 6x5=22; Then find the value of 7x6=?

    • Options
    • A. 20
    • B. 26
    • C. 30
    • D. 42
    • Discuss


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