Solution
Expression = $$1.25 - [1 \div \left\{3 + (2 - 0.4 \times 2.5)\right\}]$$
= $$1.25 - [1 \div \left\{3 + (2 -1)\right\}]$$
= $$1.25 - [1 \div (4)]$$
= $$1.25-0.25=1$$
=> Ans - (B)
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