IBPS PO Mains 30 Nov 2024 Shift 2 Paper

Concept:The series follows alternating addition and subtraction of cubes. Correct the wrong term, then use the given forecast growth factor and price comparison to determine demand.Explanation:First, identify the pattern in the series: $470, 595, 379, 722, 211, 939$.$470 + 5^3 = 470 + 125 = 595$$595 - 6^3 = 595 - 216 = 379$$379 + 7^3 = 379 + 343 = 722$$722 - 8^3 = 722 - 512 = 210$, but the term given is $211$. So $211$ is the wrong number.$210 + 9^3 = 210 + 729 = 939$, confirming the corrected term is $210$.Thus, the forecast price of item A in $2013$ is ₹$210$.Forecast price in $2014 = 210 \times 1.4 = 294$.Forecast price in $2015 = 294 \times 1.4 = 411.6$.Difference between forecast prices of $2015$ and $2013$: $411.6 - 210 = 201.6$.Given the actual price in $2015$ is $360$, and actual $(360) <$ forecast $(411.6)$, so demand is high.Answer:Difference = $201.6$ and demand is high. Hence, option C is correct.