Line Charts

Required percent, $$ = \frac{600 - 250}{250} \times 100 $$ $$ = 140 \ \% $$

total tourists from Rajastan = 2550
total tourists from Gujurat = 2800
Required percent, $$ = \frac{2800 - 2550}{2800} \times 100 $$ $$ = 8.92 \ \% \approx 9 \ \% $$

Average number of tourists in Rajastan, $$ = \frac{300 + 400 + 450 + 500 + 500 + 400}{6} $$ $$ = \frac{2550}{6} = 425 $$ average number of tourists in Gujurat, $$ = \frac{250 + 500 + 500 + 600 + 450 + 500}{6} $$ $$ = \frac{2800}{6} $$ $$ = 466.67 \approx 467 $$ Hence, the required difference, $$ = 467 - 425 = 42 $$

Tourists from Rajastan during October, November and December taken together, $$ = 300 + 400 + 450 $$ $$ = 1150 $$ Tourists from Gujurat during October, November and December taken together, $$ = 250 + 500 + 500 $$ $$ = 1250 $$ Hence, required ratio, $$ = 1150 : 1250 $$ $$ = 23 : 25 $$

Required percent, $$ = \frac{600 - 500}{500} \times 100 $$ $$ = 20 \ \% $$

Average number of mobiles sold by all the countries together in the year 2019, $$ = \frac{20 + 40 + 50}{3} $$ $$ = 36.67 \ Millions $$

Required percentage, $$ = \frac{(30 + 40)}{(40 + 50)} \times 100 $$ $$ = 77.78 \ \% $$

Number of mobiles sold by all the countries together over the years.
In 2017, $$ = 20 + 30 + 40 $$ $$ = 90 \ Millions $$ In 2018, $$ = 30 + 20 + 40 $$ $$ = 90 \ Millions $$ In 2019, $$ = 20 + 40 + 50 $$ $$ = 110 \ Millions $$ In 2020, $$ = 20 + 40 + 30 $$ $$ = 90 \ Millions $$ In 2021, $$ = 40 + 50 + 30 $$ $$ = 120 \ Millions $$ Hence, in the year 2021, the total number of mobiles sold by all the countries together was highest.

Required difference, $$ = 40 - 30 $$ $$ = 10 \ Millions $$

Required ratio, $$ = 20 : 40 : 30 $$ $$ = 2 : 4 : 3 $$