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  • Question
  • A lamppost is divided into three parts, the first part is (1/3)rd of the whole length, second (3/8)th of the first and the third is 6 m 50 cm. The length of the lamppost is?


  • Options
  • A. 15 m
  • B. 10 m
  • C. 12 m
  • D. 131/2

  • Correct Answer
  • 12 m 

    Explanation

    Let the length of lamppost = L m
    Then,first part = L/3
    and second part = (3/8) x L/3 = L/8
    and third part = 6 m 50 cm = 6.50 m
    First part + second part + Third part = length of lamppost
    ? L/3 + L/8 + 6.5 = L
    ? L - L/3 - L/8 =6.5
    ? (24L - 8L - 3L)/24 = 6.5
    ? 13L/24 = 6.5
    ? L = (65.x 24)/13 = 12 m


  • Decimal Fraction problems


    Search Results


    • 1. 
      If a fraction is multiplied by itself and then divided by the reciprocal of the same fraction, the result is 18 26/ 27. find the fraction?

    • Options
    • A. 8/27
    • B. 11/3
    • C. 22/3
    • D. 32/3
    • Discuss
    • 2. 
      A man spends (1/7)th of his salary on food, half of the remaining on clothing and (1/3)rd of the remaining on entertainment. He is still left with Rs. 600. How much does he spend on entertainment?

    • Options
    • A. Rs. 600
    • B. Rs. 450
    • C. Rs. 300
    • D. Rs. 700
    • Discuss
    • 3. 
      The value of (9 2 x 18 4) / 3 16 is?

    • Options
    • A. 2/3
    • B. 4/9
    • C. 16/81
    • D. 32/243
    • Discuss
    • 4. 
      If a fraction's numerator is increased by 1 and the denominator is increased by 1 and denominator is increased by 2 then the fraction becomes 2/3. But when the numerator is increased by 5 and the denominator is increased by 1, then the fraction becomes 5/4. What is the value of the original fraction?

    • Options
    • A. 3/7
    • B. 5/8
    • C. 5/7
    • D. 6/7
    • Discuss
    • 5. 
      If the numerator of a fraction is increased by 2 and denominator is increased by 3, the faction becomes 7/9 and if numerator as well as denominator are decreased by 1, the fraction becomes 4/5. What is the original fraction?

    • Options
    • A. 13/16
    • B. 9/11
    • C. 5/6
    • D. 17/21
    • Discuss
    • 6. 
      Find the value of 27 x 1. 2 x 5.526 2 x 0. 6 .

    • Options
    • A. 121.57
    • B. 121.75
    • C. 121.75
    • D. None of these
    • Discuss
    • 7. 
      How many pieces of 13.2 cm can be cut from a 330 cm long rod?

    • Options
    • A. 25
    • B. 28
    • C. 21
    • D. 35
    • Discuss
    • 8. 
      1/8th part of a pencil is black, half of the remaining is white. If the remaining part is blue and length of this blue part is 3 1/ 2cm, then find the length of the pencil?

    • Options
    • A. 6 cm
    • B. 7 cm
    • C. 8 cm
    • D. 9 cm
    • Discuss
    • 9. 
      In a polling booth, total number of voters is 1575 out of which 0.4 part are male voters. If a candidate gets 0.4 part of female votes, then find how many votes did the candidate get?

    • Options
    • A. 945
    • B. 756
    • C. 378
    • D. 630
    • Discuss
    • 10. 
      In a village, (5/8)th of the population are adults,half of the adults are male,(4/5)th of adult females are illiterate. if 400 females are illiterate, then the population of the village is?

    • Options
    • A. 2000
    • B. 1500
    • C. 1800
    • D. 1600
    • Discuss


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