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Arithmetic Aptitude :: H.C.F and L.C.M

Home > Arithmetic Aptitude > H.C.F and L.C.M > General Questions

21. At a stadium a certain rows are to be reserved to accommodate 12 cricket players 24 football players and 32 soccer players. How many minimum rows need to be reserved if same number of players of only one category are to be seated in each rows

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Answer: Option D

Explanation:

Here is no explanation for this answer

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22. What is the largest number that will divide 90207, 232585 and 127986 without leaving a remainder?

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Answer: Option A

Explanation:

Given numbers are 90207,127986 and 232585.

To Get the greatest number which divides given numbers without leaving a remainder.

i.e find the HCF of given numbers.
90207=3*3*3*13*257
127986=2*3*83*257
232585=5*181*257
=> 257 is the largest number.

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23. A series of books were published at seven years intervals when the seventh book was issued the sum of the publications years was 13524, when the first book was published?

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Answer: Option A

Explanation:

x+x+7+x+14+x+21+x+28+x+35+x+42=13524
7x+147=13524 then x=1911

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24. 

In the town of Unevenville, it is a tradition to have the size of the front wheels of every cart different from that of the rear wheels. They also have special units to measure cart wheels which is called uneve. The circumference of the front wheel of a cart is 133 uneves and that of the back wheel is 190 uneves. What is the distance traveled by the cart in uneves, when the front wheel has done nine more revolutions than the rear wheel?

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Answer: Option C

Explanation:

LCM of 133 and 190 is 1330.


So, to cover this distance, front wheel takes 10 rounds, and back wheel takes 7 rounds.


So, for 3 rounds extra, 1330 uneves distance has to be travelled.


To take 9 rounds extra, 1330 * 3 = 3990 uneves has to be traveled.

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25. Water is continuously poured from a reservoir to a locality at the steady rate of 10,000 liters per hour. When delivery exceeds demand the excess water is stored in a tank. If the demand for 8 consecutive three-hour periods is 10000, 10000, 45000, 25000, 40000, 15000, 60000 and 35000 liters respectively, what will be the minimum capacity required of the water tank (in 1000 liters) to meet the demand?

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Answer: Option D

Explanation:

Here is no explanation for this answer

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