Match List - I with List - II:List - I List - II A. (343)1/3 − (81)1/4 is equal to ____ I. 1/100 B. If 28 × 43 × 83 = 2x then x is equal to II. 200 C. [(1.01)2 − (1)2] / (1.01 + 1) is equal to ____ III. 4 D. A train moving with speed of 90 km/hour crosses a platform of length 100 m in 12 second. The length (m) of the train is ____ IV. 23
Choose the correct answer from the options given below:सूची - I को सूची - II से सुमेलित कीजिए:सूची - I सूची - II A. (343)1/3 − (81)1/4 बराबर है ____ I. 1/100 B. यदि 28 × 43 × 83 = 2x है तो x का मान है II. 200 C. [(1.01)2 − (1)2] / (1.01 + 1) बराबर है ____ III. 4 D. 90 कि.मी./घंटा की चाल से चलने वाली रेलगाड़ी 100 मी. लंबे प्लेटफ़ॉर्म को 12 सेकंड में पार करती है। रेलगाड़ी की लंबाई (मी.) है ____ IV. 23
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Correct answer: A. A-III, B-IV, C-I, D-II
Explanation
A: (343)1/3 − (81)1/4 = 7 − 3 = 4 (A-III). B: 28 × 26 × 29 = 223, so x = 23 (B-IV). C: [(1.01)² − 1²]/(1.01 + 1) = (1.01 − 1)(1.01 + 1)/(1.01 + 1) = 0.01 = 1/100 (C-I). D: 90 km/h = 25 m/s, distance in 12 s = 300 m, train length = 300 − 100 = 200 m (D-II).A: (343)1/3 − (81)1/4 = 7 − 3 = 4 (A-III)। B: 28 × 26 × 29 = 223, अतः x = 23 (B-IV)। C: [(1.01)² − 1²]/(1.01 + 1) = (1.01 − 1)(1.01 + 1)/(1.01 + 1) = 0.01 = 1/100 (C-I)। D: 90 कि.मी./घंटा = 25 मी./से., 12 सेकंड में दूरी = 300 मी., रेलगाड़ी की लंबाई = 300 − 100 = 200 मी. (D-II)।More Mathematical Reasoning and Aptitude questions
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