Question 1 - Page 143 - Digits in Disguise - Chapter 6 Class 7 - Number Play - Ganita Prakash

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[Class 7] Solve this cryptarithm: K2 + K2 = HMM - Teachoo - Digits in Disguise

part 2 - Question 1 - Page 143 - Digits in Disguise - Chapter 6 Class 7 - Number Play - Ganita Prakash - Class 7 (Ganita Prakash 1, 2 & old NCERT)

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Question 1 - Page 143 Solve this cryptarithm: Here, Adding two 2-digit numbers K2 gives 3 digit number So, we start from biggest number For K = 9 92 + 92 = 184 But, 184 ≠ HMM as last 2 digits are not same ∴ This is not possible For K = 8 82 + 82 = 164 But, 164 ≠ HMM as last 2 digits are not same ∴ This is not possible For K = 7 72 + 72 = 144 Now, 144 = HMM Thus, K = 7, H = 1, M = 4

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