REAL NUMBER CHAPTER. MOST IMPORTANT PYQS
Hey!! These are Most expected 10 important questions of real number class 10 for CBSE board exams 2022-23.
QUESTIONS.
Q1: Use Euclid’s algorithm to find the HCF of 4052 and 12576 .
Q-2:Prove that √3 is an irrational number.
Q-3:Prove that5+√2 is an irrational number.
Q4: An army contingent of 616 members is to march behind and army of 32 members in a parade. The two groups are to march in the same number of columns. What is the maximum number of columns in which they can march?
Q5: There is a circularpath around a sportsfield. Sonia takes18 minutes to drive one round while Ravi takes 12 minutes for the same. Suppose they both start at the same point and at same time, and go in same direction. After how many minutes will they meet again at the starting point.
Q6:ExplainWhy11×13×15×17+17is a composite number.
Q7:Find the HCF andLCM of 306 and 54.Verify that HCF×LCM.
= Product of the two numbers.
Q8:A merchant has 120 litres of oil of one kind,180 litres of another kind and 240litres of third kind.He wants to sell the oil by filling the three kinds of oil in tins of equal capacity. What should be the greatest capacity of such a tin?
Q9:If HCF of 144and180 is expressed inthe formof 13m-3, find the value of m.
Q10:Show that reciprocal of 3+2√2 is an irrational number.
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