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प्रश्न
Replace the letter by symbols as + for A, – for B, × for C and ÷ for D. Find the answer for the pattern 4B3C5A30D2 by doing the given operations
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उत्तर
Given the symbols + for A, – for B, × for C, ÷ for D.
∴ 4B3C5A30D2 becomes
4 – 3 × 5 + 30 ÷ 2
Using BIDMAS rule
4 – 3 × 5 + 30 ÷ 2
= 4 – 3 × 5 + 15 ..[÷ done first]
= 4 – 15 + 15 ...[× done second]
= 4 – 0 ...[+ done third]
= 4 ...[– done last]
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