NCERT Solutions Ganita Prakash (Part 2) Chapter 7 Figure it Out (2)

Write 5 equations whose solution is x = – 2.

Find the value of each unknown: (a) 2y = 60 (b) – 8 = 5x – 3 (c) – 53w = –15 (d) 13 – z = 8 (e) k + 8 = 12 – k (f) 7m = m – 3 (g) 3n = 10 + n

I am a 3-digit number. My hundred’s digit is 3 less than my ten’s digit. My ten’s digit is 3 less than my unit’s digit. The sum of all the three digits is 15. Who am I?

The weight of a brick is 1 kg more than half its weight. What is the weight of the brick?

One quarter of a number increased by 9 gives the same number. What is the number?

Given 4k + 1 = 13, find the values of: (a) 8k + 2 (b) 4k (c) k (d) 4k – 1 (e) – k – 2