| Question | Select the correct combination of mathematical signs that can sequentially replace the * signs and balance the equation. 25 * 7 * 40 * 20 * 4 * 210 | |
| Type | multiple_choice | |
| Option | +, −, =, ÷, × | incorrect |
| Option | ×, −, +, ÷, = | incorrect |
| Option | −, +, =, ÷, × | incorrect |
| Option | ×, +, −, ÷, = | correct |
| Solution | 25 * 7 * 40 * 20 * 4 * 210 Take option D, 25 × 7 + 40-20 ÷ 4 = 210 175 + 40 – 5 = 210 210 = 210 LHS = RHS Hence, option D is correct. | |
