Question

0.8×20 ? 10 -1.25+0.4 =0.75 find the operator in '?'​

Answer 1

Correct Question :- 0.8 × 20 ? 10 - 1.25 - 0.4 =0.75 find the operator in '?'

Solving other digits , which are not near to ? ,

→ 0.8 * 20 ? 10 = 0.75 + 1.25 - 0.4

→ 0.8 * 20 ? 10 = 2 - 0.4

→ 0.8 * 20 ? 10 = 1.6

Now, putting all operator one by one we get,

Taking (+) in place of ? ,

→ 0.8 * 20 + 10 = 1.6

→ 16 + 20 = 1.6

→ 36 ≠ 1.6

Taking (-) in place of ? ,

→ 0.8 * 20 - 10 = 1.6

→ 16 - 20 = 1.6

→ 4 ≠ 1.6

Taking (×) in place of ? ,

→ 0.8 * 20 × 10 = 1.6

→ 0.8 * 200 = 1.6

→ 160 ≠ 1.6

Taking (÷) in place of ? ,

→ 0.8 * 20 ÷ 10 = 1.6

→ 0.8 * 2 = 1.6

→ 1.6 = 1.6

Hence, the operation in palce of " ? " is " ÷ " .

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