Question 5 - Figure it out - Page 185 to 189 - Chapter 7 Class 7 - Finding the Unknown (Ganita Prakash II)
Last updated at February 10, 2026 by Teachoo
Figure it out - Page 185 to 189
Question 1
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Class 7 (Ganita Prakash 1, 2 & old NCERT)
Chapter 7 Class 7 - Finding the Unknown (Ganita Prakash II)
Transcript
Question 5 What are the inputs to these machines? We solve both equations one-by-one First equation We can go in reverse Final answer is 5 Number is divided by 3, so we multiply. Thus, 5 × 3 = 15 Again, Number is divided by 3, so we multiply. Thus, 15 × 3 = 45 Thus, our input is 45 Second equation We can go in reverse Final answer is –11 Number is subtracted by 4, so we add. Thus, –11 + 4 = – (11 + 4) = –7 Again, Number is subtracted by 4, so we add. Thus, –7 + 4 = – (7 – 4) = –3 Thus, our input is –3
