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Biology · PYQ NEET UG 2026

हिन्दी

Length of the stem at time 0 is 20 cm. The arithmetic growth rate is 30 cm per day. What is the length of the stem at the end of the 7th day?

  1. 50 cm
  2. 170 cm
  3. 230 cm
  4. 460 cm

Correct answer · Option 3

230 cm

Explanation

For arithmetic growth, L_t = L_0 + rt. Here L_0 = 20, r = 30, t = 7. L_7 = 20 + (30 × 7) = 230 cm.
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