Multiple Choice Questions on How many numbers are there from 300 to 650 which are completely divisible by both 5 and 7 ........ for SSC CGL Exam Preparation

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Multiple Choice Questions

How many numbers are there from 300 to 650 which are completely divisible by both 5 and 7 ........

Quantitative Aptitude (CGL) Number System
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    How many numbers are there from 300 to 650 which are completely divisible by both 5 and 7?

    8

    Incorrect Answer

    9

    Incorrect Answer

    10

    Correct Answer

    12

    Incorrect Answer
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    Explanation:

    the first divisible no by 35 after 300 is315
    we know that n th term in a series equal to a+(n-1)d
    so a=315,d=35, suppose take nth term is 650
    650=315+(n-1)35
    335=(n-1)35
    n-1=335/35 ==9(approxmately)
    n-1=9
    n=10

    By: MIRZA SADDAM HUSSAIN
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