Question 1 - Figure it out - Page 140 - Chapter 6 Class 8 - Algebra Play (Ganita Prakash II)

Last updated at March 6, 2026 by

Without building the entire pyramid, find the number in the topmost - Figure it out - Page 140

part 2 - Question 1 - Figure it out - Page 140 - Chapter 6 Class 8 - Algebra Play (Ganita Prakash II) - Class 8 (Ganita Prakash - 1, 2 & Old NCERT)
part 3 - Question 1 - Figure it out - Page 140 - Chapter 6 Class 8 - Algebra Play (Ganita Prakash II) - Class 8 (Ganita Prakash - 1, 2 & Old NCERT)

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Transcript

Question 1 Without building the entire pyramid, find the number in the topmost row given the bottom row in each of these cases.We know that for a general pyramid with 3 rows at the bottom The values are Pyramid 1 Top most value = 4 + 2 × 13 + 8 = 4 + 26 + 8 = 38 Pyramid 2 Top most value = 7 + 2 × 11 + 3 = 7 + 22 + 3 = 32 Pyramid 3 Top most value = 10 + 2 × 14 + 25 = 10 + 28 + 25 = 64

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