Directions (1-5): Given bar graph shows the production of mobile phones by Nokia & Samsung in 4 years. Study the data carefully and answer the questions.
Q1. How many mobile phones have been produced of Samsung over all the years?
Q2. Nokia mobiles produced in 2016 & 2017 together are how much more than Samsung mobiles produced in 2018 & 2019?
Q4. What is the ratio of Nokia mobiles produced in 2016, 2017 & 2018 together to Samsung mobiles produced in 2016, 2017 & 2019 together?
(e) None of these
Q5. In which year the increase in production was maximum as compared to previous year & for which company?
(a) Nokia, 2017
(b) Nokia, 2018
(c) Samsung, 2019
(d) Nokia, 2019
Directions (6-10): In each of the following questions, two equations (I) and (II) are given. Solve the equations and mark the correct option: