If + means ×, × means −, ÷ means + and − means ÷, then 175 − 25 ÷ 5 + 20 × 3 + 10 equals:

উত্তর: (A) 77

• (A) সঠিক

  Correct: converted expression is 175 ÷ 25 + 5 × 20 − 3 × 10 = 7 + 100 − 30 = 77.

• (B) ভুল

  Wrong: this comes from an arithmetic slip; the correct value is 77.

• (C) ভুল

  Wrong: this ignores the BODMAS order after substitution.

• (D) ভুল

  Wrong: this drops one of the terms; the correct value is 77.