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  • Question
  • A tank is 2/5 full. If 16 litres of water is added to the tank, it becomes 6/7 full. The capacity of the tank is:


  • Options
  • A. 28 litres
  • B. 32 litres
  • C. 35 litres
  • D. 42 litres

  • Correct Answer
  • 35 litres 

    Explanation

    Let the capacity of the tank be x litres.

     

    Then, (6x/7 - 2x/5) = 16 <=> 30x - 14x = 16*35 <=> x = 35


  • Simplification problems


    Search Results


    • 1. To fill a tank, 25 buckets of water is required. How many buckets of water will be required to fill the same tank if the capacity of bucket is reduced to two-fifth of its present ?

    • Options
    • A. 52.5
    • B. 62.5
    • C. 72.5
    • D. 82.5
    • Discuss
    • 2. The difference of 18 and its reciprocal is equal to :

    • Options
    • A. 1/8
    • B. 4/3
    • C. 15/16
    • D. 105/304
    • Discuss
    • 3. If a + b + c = 13, a2+b2+c2=69 then find the ab + bc + ca :

    • Options
    • A. 10
    • B. 30
    • C. 50
    • D. 70
    • Discuss
    • 4. If a * b = 2a - 3b + ab, then 3 * 5 + 5 * 3 is equal to :

    • Options
    • A. 22
    • B. 23
    • C. 24
    • D. 25
    • Discuss
    • 5. A fires 5 shots to B's 3 but A kills only once in 3 shots while B kills once in 2 shots. When B has missed 27 times, A has killed :

    • Options
    • A. 30 birds
    • B. 60 birds
    • C. 72 birds
    • D. 90 birds
    • Discuss
    • 6. Simplify the following equation. 1943 + 12 + 13 + 11 + 14

    • Options
    • A. 43/19
    • B. 1
    • C. 38/19
    • D. None of these
    • Discuss
    • 7. In a regular week, there are 5 working days and for each day, the working hours are 8. A man gets Rs. 2.40 per hour for regular work and Rs. 3.20 per hours for overtime. If he earns Rs. 432 in 4 weeks, then how many hours does he work for ?

    • Options
    • A. 160
    • B. 175
    • C. 180
    • D. 195
    • Discuss
    • 8. How many 18 ' s are there in 3712 ?

    • Options
    • A. 300
    • B. 400
    • C. 500
    • D. 600
    • Discuss
    • 9. The total of 324 of 20 paise and 25 paise make a sum of Rs. 71. The no of 20 paise coins is :

    • Options
    • A. 50
    • B. 100
    • C. 150
    • D. 200
    • Discuss
    • 10. Simplify 1.53 + 4.73 + 3.83 - 3 x 1.5 x 4.7 x 3.81.52 + 4.72 + 3.82 - 1.5 x 4.7 - 4.7 x 3.8 - 1.5 x 3.8

    • Options
    • A. 6
    • B. 8
    • C. 10
    • D. 12
    • Discuss


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