MCQ Class 8 Maths Ganita Prakash Chapter 1 A Square and A Cube Advertisement 1. A locker remains open if it is toggled how many times? Even number Odd number Prime number TwiceQuestion 1 of 202. The number of times a locker is toggled depends on: Its position Number of people Number of factors Prime factors onlyQuestion 2 of 203. Which numbers have an odd number of factors? Prime numbers Even numbers Square numbers Odd numbersQuestion 3 of 204. Which locker numbers remain open? Prime numbers Even numbers Square numbers Odd numbersQuestion 4 of 205. What is 3²? 6 9 12 8Question 5 of 206. What is the square of 5? 20 15 25 30Question 6 of 207. What is n × n written as? n² n³ 2n √nQuestion 7 of 208. Which is a perfect square? 15 18 16 20Question 8 of 209. Which digit cannot be the unit digit of a square number? 4 5 7 9Question 9 of 2010. Which number cannot be a perfect square? 49 64 38 81Question 10 of 2011. What is the unit digit of all squares? 2,3,7,8 0,1,4,5,6,9 Only 1 Only 0Question 11 of 2012. If a number ends in 7, it is: Square Not a square Prime EvenQuestion 12 of 2013. Difference between consecutive squares forms: Even numbers Prime numbers Odd numbers Multiples of 5Question 13 of 2014. 1 + 3 + 5 + 7 equals: 15 16 14 12Question 14 of 2015. Sum of first n odd numbers equals: n n² 2n n³Question 15 of 2016. 25 can be written as: 1+3+5+7 1+3+5+7+9 1+3+5 5+7+9Question 16 of 2017. Which is NOT a perfect square? 81 100 38 49Question 17 of 2018. The nth odd number is: n+1 2n 2n−1 n²Question 18 of 2019. 36² equals: 1225 1296 144 1369Question 19 of 2020. Square root of 49 is: 6 7 8 9Question 20 of 20 Loading...
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