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  • Question
  • If it is possible to make a number which is perfect square of a two-digit odd number with the second, the sixth and ninth digits of the number 187642539. which of the following is the digit in the unit's place of that two-digit odd number?


  • Options
  • A. 1
  • B. 7
  • C. 9
  • D. No such number can be made

  • Correct Answer


  • Explanation

    The specified digits are 8, 2 and 9. Now, we know a perfect square number does not have 8 and 2 at unit's place. Therefore, we can make only two three-digit numbers from it, i.e., 829 and 289. Among these two numbers, 289 is a perfect square number, i.e., square of 17. Thus, unit's digit is 7 and ten's digit is 1.


  • More questions

    • 1. 
      Statement
      Politicians become rich by the votes of the people.
      Assumptions
      I. People vote to make politicians rich.
      II. Politicians become rich by their virtue.

    • Options
    • A. Only Assumption I is implicit
    • B. Only Assumption II is implicit
    • C. Both Assumptions I and II are implicit
    • D. Both Assumptions I and II are not implicit
    • Discuss
    • 2. 
      How many steps will be required to get the final output from the following input?
      Input :: 319 318 746 123 15 320 78 426

    • Options
    • A. four
    • B. five
    • C. six
    • D. seven
    • Discuss
    • 3. 
      If three days after today will be Tuesday, what day was 4 days before yesterday?

    • Options
    • A. Tuesday
    • B. Sunday
    • C. Monday
    • D. Wednesday
    • Discuss
    • 4. Find the odd one out:

    • Options
    • A. 119
    • B. 136
    • C. 147
    • D. 153
    • Discuss
    • 5. 
      RECOMMENDATION

    • Options
    • A. COMMUNICATE
    • B. REMINDER
    • C. MEDICO
    • D. MEDIATES
    • Discuss
    • 6. 
      _bbm_amb_m_a_bb

    • Options
    • A. mbabm
    • B. abmab
    • C. mabam
    • D. ambbm
    • Discuss
    • 7. 
      Statement
      State Government imposes a monthly tax on the salary of all the employees. The tax amount varies according to the income slab. The Central Government also imposes tax. This is against the theory of taxation.
      Conclusions
      I. A regular collection, irrespective of the income slab, by the Central Government is the income tax
      II. The Central Government should not collect any tax on income
      III. Income tax should not vary according to the income slabs
      IV. Tax should be imposed only once on an individual

    • Options
    • A. if only Conclusion I follows
    • B. if only Conclusion II follows
    • C. if either I or II follows
    • D. if neither I nor II follows
    • Discuss
    • 8. 
      Crocodile : Whale : Hippopotamus

    • Options
    • A. They are animals
    • B. They are domestic animals
    • C. They are land animals
    • D. They are water animals
    • Discuss
    • 9. 
      If India is one of the two countries chosen from Asia, how many possible combinations exist?

    • Options
    • A. Four
    • B. Seven
    • C. Six
    • D. Five
    • Discuss
    • 10. 
      Nitin was counting down from 32. Sumit was counting upwards the numbers starting from 1 and he was calling out only the odd numbers. What common number will they call out at the same time if they were calling out at the same speed?

    • Options
    • A. 19
    • B. 21
    • C. 22
    • D. They will not call out the same number
    • Discuss


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