App Logo

No.1 PSC Learning App

1M+ Downloads
If ‘+’ means ‘–’, ‘–’ means ‘×’, ‘×’ means ‘÷’ and ‘÷’ means ‘+’, then what will be the value of the following expression? 25 – 2 + 32 × 8 ÷ 4

A51

B45

C55

D50

Answer:

D. 50

Read Explanation:

  • 25 × 2 - 32 ÷ 8 + 4

  • = 25 × 2 – 4 + 4

  • = 50 – 4 + 4

  • = 50


Related Questions:

If ‘A’ denotes ‘addition’, ‘B’ denotes ‘multiplication’, ‘C’ denotes ‘subtraction’, and ‘D’ denotes ‘division’, then what will be the value of the following expression ?

100 D (1 B 4) A 2 B (13 A 11) C 3 B (17 C 12)

In the following number-pairs, the second number is obtained by applying certain mathematical operations to the first number. Select the set in which the numbers are related in the same way as are the numbers of the following sets. (Note: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g. 13 – Operations on 13 such as adding/subtracting/multiplying to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

56, 63.4

84, 91.4

+ ഉം ÷ ഉം ഗ്രൂപ്പിൽ ഉപയോഗിച്ചിരിക്കുന്നതിനാൽ താഴെയുള്ള ഏത് സമവാക്യമാണ് അപരിചിതമായിരിക്കുന്നത്?

I. 27 ÷ 3 - 18 × 3 + 9 = 24

II. 12 ÷ 8 × 12 + 16 - 7 = 19

If ‘+’ and ‘÷’ are interchanged and ‘−’ and ‘×’ are interchanged, then what will come in place of the question mark (?) in the following equation? 15 × 2 − 48 + 4 ÷ 5 = ?
If the mathematical operator, ‘+’ means ‘×’, ‘÷’ means ‘-‘, ‘-‘ means ‘+’, and ‘×’ means ‘÷’, then the value of 22 + 3 – 2 ÷ 8 × 4 is