Question

Select the correct combination of mathematical signs to replace * signs and to balance the given equation:

5 * 5 * 5 * 3 * 10

1. + – × =
2. + ÷ = ×
3. + ÷ × =
4. × + = ×

Answer 1

Correct Answer - Option 4 : × + = ×

The given equation: 5 * 5 * 5 * 3 * 10
If we replace the blanks with '+ – × =', we get:
5 + 5 - 5 × 3 = 10
⇒ 10 - 15 = 10
⇒ -5 = 10 (not correct)

If we replace the blanks with '+ ÷ = ×', we get:
5 + 5 ÷ 5 = 3 × 10
⇒ 5 + 1 = 30
⇒ 6 = 30 (not correct)

If we replace the blanks with '+ ÷ × =', we get:
5 + 5 ÷ 5 × 3 = 10
⇒ 5 + 1 × 3 = 10
⇒ 8 = 10 (not correct)

If we replace the blanks with '× + = ×', we get:
5 × 5 + 5 = 3 × 10
⇒ 25 + 5 = 30
⇒ 30 = 30 (correct)

Hence, '× + = ×' will replace the blanks.