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The first three-digit number is (100), which is not divisible by (7), but (105,112,119,\ldots) is the AP of three-digit multiples of (7). What is the (50)th term of this AP?तीन अंकों वाली पहली संख्या (100) है जो (7) से विभाज्य नहीं है, लेकिन (105,112,119,\ldots) तीन अंकों वाली (7) की गुणज AP है। इस AP का (50)वां पद क्या होगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (448)(448)
In this AP, (a=105), (d=7), so (a_{50}=105+49\times7=448). In an AP of multiples, choose the first correct multiple.इस AP में (a=105), (d=7), इसलिए (a_{50}=105+49\times7=448)। गुणजों की AP में पहला सही गुणज चुनें।
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