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Solution
Let, the number be = a
Given,
15% of 40 = 25% of a + 4
0.15 × 40 = (0.25 × a) + 4
6 = 0.25a + 4
0.25a = 6...
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Study the given information carefully and answer the following questions A, B, C, D, E, F and G are seven friends studying seven different branches of engineering, namely Mechanical, Chemical, Electrical, Electronics, Civil, Computer and Aeronautical Engineering, not necessarily in this order. Each of them studies in three…
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