Question

What is the maximum percentage increase in price per cubic metre or per tonne over the previous year?

• A. 33.33%
• B. 85%
• C. 50%
• D. Cannot be determined
• A. Saw timber
• B. Plywood
• C. Logs
• D. Cannot be determined
• A. 1989
• B. 1990
• C. 1991
• D. 1992
• A. 1989
• B. 1990
• C. 1991
• D. 1992
• A. 18
• B. 15
• C. 16
• D. 13
• A. 18.95
• B. 16.45
• C. 13.15
• D. 10.25

Answer 1

The Correct Option is C

We examine the prices of plywood, saw timber, and logs from the chart for each year (1987 to 1993), looking for the maximum percentage increase from one year to the next. From the graph: - Logs: - 1989 to 1990: increase from approx. Rs. 4 to Rs. 6 \[ \frac{6 - 4}{4} \times 100 = 50% \] - Plywood: - 1990 to 1991: increase from approx. Rs. 9 to Rs. 12 \[ \frac{12 - 9}{9} \times 100 = 33.33% \] - Saw timber: - 1990 to 1991: increase from approx. Rs. 15 to Rs. 17.5 \[ \frac{17.5 - 15}{15} \times 100 \approx 16.67% \] Hence, the maximum percentage increase is for logs from 1989 to 1990, which is: \[ \boxed{50%} \]

Answer 2

From the graph, observe the prices from 1987 to 1993. Plywood shows a noticeable increase from around Rs. 15 to Rs. 20. Percentage increase = \[ \frac{20 - 15}{15} \times 100 = 33.33% \] Compare with saw timber and logs: Their fluctuations are less over the period. Thus, plywood shows the highest percentage increase over the entire period.

Answer 3

From the graph, observe saw timber and log prices across years. In 1990, the prices of both saw timber and logs are the closest together, so the difference in prices is the least. This is visually evident from the chart where the two lines nearly converge.

Answer 4

Convert the given prices to per cubic metre using conversion factors. Check each year: - In 1992: Plywood: Rs. 19 (approx) Saw timber: Rs. 12 (approx) Plywood per m$^3$ = Rs. 19 for 700 kg Saw timber per m$^3$ = Rs. 12 for 800 kg The gap is maximum in 1992 when comparing these scaled values.

Answer 5

Prices in 1993 (approx from chart): - Plywood: 20 - Saw timber: 14 - Logs: 6 Average Realisation: \[ 0.4 \times 20 + 0.3 \times 14 + 0.3 \times 6 = 8 + 4.2 + 1.8 = \boxed{14} \] However, the closest option is (D) 13, which appears to be a misprint. Based on calculation, correct average is 14.

Answer 6

New prices in 1994 after increase: - Plywood: 20 + 5% = 21 - Saw timber: 14 + 1% = 14.14 - Logs: 6 + 10% = 6.6 Weighted average: \[ 0.4 \times 21 + 0.3 \times 14.14 + 0.3 \times 6.6 = 8.4 + 4.242 + 1.98 = \boxed{14.622} \] Closest option is 13.15 (though actual value is approx 14.62, indicating possible typo or difference in assumed base price).