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## ` Math Challenge

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**`Math Challenge**Saturday, 13 September 2014**Middle Section**Classes : IV - VI**Mixed Bag Round**• 5 x 4 = 20 Questions • Mixed questions from different topics of Math • Each question carries 10 points and if passed to the next two groups 5 and 3 points respectively. • Time allowed 30 seconds, 15 seconds and 10 seconds.**Mixed Bag Round**Topic – Geometry**Geometry**Question: What is the name of a five sided polygon? Answer: A pentagon is a five sided polygon.**Geometry- Triangle-Terminology**What is the triangle called with no two sides equal ? Answer: Scalene triangle**Geometry- Angles-Terminology**What is the name given to the two angles the sum of which is 180 degrees? Answer: Supplementary angles**Geometry- Angles-Terminology**What is the name for an angle that measures 120 degrees? Answer: Obtuse angle**Mixed Bag Round**Topic – Algebra**Algebra-Equations**What is the value of N for the equation 4 + N = 18 ? Answer: 14**Algebra-Equations**What is the value of N for the equation N ÷ 4 = 6 ? Answer: 24**Algebra**Question: What is the simplified form of : c ∙ c ∙ c ∙ d ∙(-2). d ∙ c ∙ d ? Answer: -2c4d3**Algebra-Equations**How many terms are there in a trinomial? Answer: 3**Mixed Bag Round**Topic – Number**Number-Factors**What is the greatest factor of 24 ? Answer: 24**Number-Cube Numbers**What is the cube of 7? Answer: 343**Numbers-LCM**What is the LCM of 2, 4 and 5? Answer: 20**Number-Basic Operations**How many eggs are in 15 dozen? Answer: 180**Number-Indices**What is 22 X 32 Answer: 36**Number-Basic Operations**What is 248 – 166 ? Answer: 82**Number-Roman Numerals**Express 2040 in Roman numerals. Answer: MMXL**Number-Roman Numerals**What does the Roman numeral DCLX represent in decimal system? Answer: 660**Mixed Bag Round**Topic – FDP**FDP-Fractions**What is the simplified form of Answer:**FDP-Fractions**What is Answer: 10**FDP-Percentage**What is 40 % of 60? Answer: 24**FDP-Decimals**What is 10 – 2.25 ? Answer: 7.75**Mixed Bag Round**Topic – Metric Measure**Measurement-Time**How many decades are there in a century? Answer: 10**Measures-Time**How many years are there in a century? Answer: 100**Metric Measures**How many grams are there in 2.5 kg? Answer: 2500 grams**Metric Measures**How many minutes are there in 2and half hours? Answer: 150 minutes**Your Choice Round**• 2 x 4 = 8 Questions • Questions from the topics of your choice among Number, Algebra and coordinates, Mensuration, Fractions-Decimals – Percentages, • No group will be allowed to choose more than one questions from the same category. • Each question carries 5 points. • Time allowed 30 Seconds for each question. Question will not be passed to the other groups.**Your Choice Round**Topic – FDP**FDP-Fractions**What is 25% of 16 Answer: 4**FDP-Decimals**What is 1.3 x 0.3? Answer: 0.39**FDP-Fractions**What is the lowest form of ? Answer:**FDP-Fractions**What is the common denominator for ? Answer: 18**Your Choice Round**Topic – Number System**Numbers**What is the smallest number that can be formed with digits 2, 0, 5, 4? Answer: 2045**Number-Integers**What is the value of 3 x 6 - 4 ÷ 2 ? Answer: 16**Number-Patterns**What is the next number in the pattern 3, 9, 27, …? Answer: 81**Number**Which counting number is neither prime nor composite? Answer: 1**Your Choice Round**Topic – Measurements**Measurement-Time**What is the number of minutes in 1 day? Answer: 1440**Metric Measures**How many centimetres in 1.8 m? Answer: 180**Metric Measures**How many grams are there in 2.43 kilograms? 2430 grams**Measurement-Time**What will be the time 5 hours and 35 minutes after 11:45 AM ? Answer: 5:20 PM**Your Choice Round**Topic – Geometry