Practise 100 Most Repeated MCQs of Math MCQs in Maths. Attempt multiple-choice questions, check answers and revise related subtopics.
Study 100 Most Repeated MCQs of Math through multiple-choice questions in Maths. This subtopic contains 1095 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.
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Answer: 18 km/hr
Explanation To find speed, convert the time to hours and distance to kilometers: Time = 2 minutes 30 seconds = 2.5 minutes = 2.5/60 = 1/24 hours Distance = 750 meters = 0.75 kilometers Speed = Distance / Time = 0.75 / (1/24) = 0.75 x 24 = 18 km/hr
Answer: 15
Explanation 3+1 = 4 4+3 = 7 7+1 = 8 8+3 = 11 11+1 = 12 12+3 = 15
Answer: 9
Explanation Total students = 26 Students who like football = 21 Students who like cricket = 14 Let x be the number of students who like both football and cricket. Using the formula: (Football ∪ Cricket) = Football + Cricket – Both So, 26 = 21 + 14 – x 26 = 35 – x x = 35 – 26 x = 9
Answer: 16
Explanation 20% of the 80 =20/100*80 =1/5*80 =1*16 = 16
Answer: 31
Explanation
Answer: 4000
Explanation Let P, Q and R represent their respective monthly incomes. Then, we have: P + Q = (5050 x 2) = 10100 .... (i) Q + R = (6250 x 2) = 12500 .... (ii) P + R = (5200 x 2) = 10400 .... (iii) Adding (i), (ii) and (iii), we get: 2(P + Q + R) = 33000 or P + Q + R = 16500 .... (iv) Subtracting (ii) from (iv), we get P = 4000 Therefore P's monthly income = Rs. 4000
Answer: Altitude
Explanation In geometry, an altitude of a triangle is a line segment through a vertex and perpendicular to (i.e., forming a right angle with) a line containing the base (the side opposite the vertex). This line containing the opposite side is called the extended base of the altitude.
Answer: 9:13
Explanation Given A:B = 3:4 and B:C = 12:13. First, make the ratios for B consistent: A:B = 3:4 = 9:12 (multiplied by 3) Now, B:C = 12:13 A:B:C = 9:12:13 A:C = 9:13
Answer: 45 years
Explanation Given: - 5 years ago, average age of A, B, C, and D = 45 years - So, total age of A, B, C, and D 5 years ago = 45 × 4 = 180 years - Now, their total age = 180 + (5 × 4) = 200 years - Current average of A, B, C, D, E = 49 years - So, total age of all five = 49 × 5 = 245 years Now, age of E = 245 − 200 = 45 years
Answer: Population
Explanation Both the sampling as well as the non-sampling errors must be reduced to a minimum in order to get as representative a sample of the Population as possible. نمونے لینے کے ساتھ ساتھ غیر نمونہ لینے کی غلطیوں کو کم سے کم کیا جانا چاہیے تاکہ نمائندہ کے طور پر ممکن ہو آبادی کا نمونہ حاصل کیا جا سکے۔ ==== جب کوئی آبادی کا نمونہ لینے کی کوشش کرتا ہے تو نمونے لینے کی بہت سی غلطیاں ہو سکتی ہیں۔ مثال کے طور پر، ایک ایسے طالب علم کو لیں جو ہائی اسکول کے تمام طلباء پر سروے کرنا چاہتا ہو۔ ایسا کرنے کے لیے، وہ صرف لائبریری کے باہر کھڑے ہوتے ہیں اور اس دن لائبریری میں آنے والے طلبہ سے سوالات کرتے ہیں۔ یہ ایک سہولت کا نمونہ سمجھا جاتا ہے کیونکہ وہاں یہ گروپ طالب علم کے لیے تلاش کرنا بہت آسان تھا، اور یہ ہائی اسکول کے ان تمام طلباء کی آبادی کا مکمل نمائندہ نہیں ہے۔
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