NCERT Class 6 Mathematics Twelfth Chapter Ratio And Proportion Exercise 12.2 Solution EXERCISE 12.2 (1) Determine if the following are in proportion. (a) 15, 45, 40, 120 Solution: We know, 1st term × 4th term = 2nd term × 3rd term So, 15 × 120 = 45 × 40 Or, 1800 = 1800 Ans: Yes […]