46. Find the least number which when divided by 20, 15 and 30 leaves 5 as remainder in each case. (A) 65 (C) 50 (B) 55 (D) 35
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The LCM of the numbers 15, 25 and 35 will be 75∗7=525
Now, number has a remainder of 25 when divided by 35. Similarly, number has remainder 15 on dividing by 25 and remainder is 5 when divided by 15. In each case, we are 10 short of getting a zero remainder. So the desired number must be 525−10=515
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answer of this question is 515 ,
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