Direction : The Line graph shows the number of people (Boys + girls) visited…
2020
Direction : The Line graph shows the number of people (Boys + girls) visited five (A, B, C, D & E) different parks and the number of girls visited out of total people visited these five parks. Read the data carefully and answer the questions.
Find total number of boys visited in park A, B & C together?
- A.
104
- B.
102
- C.
106
- D.
108
- E.
96
Show answer & explanation
Correct answer: B
Concept: In a two-quantity line graph where one line is a total (Boys + Girls) and the other is a part (Girls), the remaining part is found by subtraction: Boys at a park = (Boys + Girls) at that park − Girls at that park. To get a combined figure across several parks, compute each park's part first, then add — never subtract a sum of girls from a sum of totals only after confirming both readings.
Reading the graph: Read each park's two plotted values off the gridlines (each minor gridline = 2 units).
Park | Boys + Girls | Girls | Boys |
|---|---|---|---|
A | 64 | 30 | 34 |
B | 72 | 32 | 40 |
C | 76 | 48 | 28 |
Application (step by step):
Park A boys = 64 − 30 = 34.
Park B boys = 72 − 32 = 40.
Park C boys = 76 − 48 = 28.
Add the three: 34 + 40 + 28 = 102.
Cross-check: Add the three totals (64 + 72 + 76 = 212) and the three girls (30 + 32 + 48 = 110), then subtract: 212 − 110 = 102. Both routes agree, so the total number of boys across parks A, B and C is 102.