Skip to content
We use only essential cookies to keep you signed in and remember your preferences. See our Cookie Policy.
TestStop
MocksPracticeResourcesIndiaBlogPricing
Sign in
Questions › UGC-NET › UGC-NET 2025 › Q15
2 marksMicroeconomics › Demand theory and elasticity › Price elasticity of demandModerateabout 1 min

UGC-NET 2025 Question 15: Demand theory and elasticity

Given the demand function Q=100−P−P2Q = 100 - P - P^2Q=100−P−P2, the elasticity of demand (ede_ded​) at price P=5P = 5P=5 is:

Tap an option to check your answer.

Answer and worked solution

Checking your account…

Plain-text version

Given the demand function Q = 100 - P - P², the elasticity of demand (e_d) at price P = 5 is: (A) elastic (B) inelastic (C) unitary elastic (D) infinitely elastic

Also written as: Given the demand function Q = 100 - P - P^2, the elasticity of demand (e_d) at price P = 5 is:

Demand theory and elasticity has come up 161 times in 7 exams since 2004.

What this question tests

This question is on Price elasticity of demand, part of Demand theory and elasticity in Microeconomics.

How responsive quantity is to price, at a point, along a linear curve, and for constant-elasticity demand.

TestStop has 41 past-paper questions on this subtopic; the nearest in year are below.

  • GATE 2023 · Q52Suppose the own price elasticity of demand and income elasticity of demand are given by eₚ and e_I…
  • GATE 2021 · Q1A firm finds that for the product that it produces, its (own) price elasticity of demand is 4. Currently…
  • IIT JAM 2021 · Q48A consumer always spends 50% of monthly income on food. A value added tax raises food prices by 20% while…
Take this paper as a timed mockMore on Price elasticity of demand

Similar questions from other papers

  • CUET-PG 2026 · Q3Goods are substitutes when an increase in price of one leads to _ of other commodity.
  • IIT JAM 2026 · Q5Let e, R, and p represent own price elasticity of demand, total revenue, and price, respectively for a good. If (∂ R)/(∂ p)<0, then
  • UGC-NET 2026 · Q24If the demand function is Q = 100 - 2P, when P = 25; then elasticity of demand will be:
  • CUET-PG 2025 · Q39The decision by consumers to buy larger quantities of a good at each possible price can not be caused by
  • GATE 2025 · Q28The demand function is given as log Q = log A + 0.5log P, where Q is quantity, P is the unit price of the good and A is a positive real number. The own price elasticity…

Question from the UGC-NET 2025 paper. Solutions are TestStop's own. Not affiliated with or endorsed by any examination authority.