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Recent questions tagged lcm-hcf

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The $L.C.M$ of $\left (x^{3}-x^{2}-2x \right)$ and $\left (x^{3}+x^{2} \right)$ is : $\left (x^{3}-x^{2}-2x \right)$ $\left (x^{2}+x \right)$ $\left (x^{4}-x^{3}-2x^{2} \right)$ $x-2$
asked Apr 3, 2020 in Quantitative Aptitude Lakshman Patel RJIT 10.7k points 118 744 833 182 views
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1 answer
2
About the number of pairs which have $16$ as their H.C.F. and $136$ as their L.C.M., we can definitely say that: Only one such pair exists Only two such pairs exist Many such pairs exist No such pair exists
asked Apr 1, 2020 in Quantitative Aptitude Lakshman Patel RJIT 10.7k points 118 744 833 241 views
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3
The H.C.F. of $(4x^{3}+3x^{2}y-9xy^{2}+2y^{3})$ and $(x^{2}+xy-2y^{2})$ is : $(x-2y)$ $(x-y)$ $(x+2y)(x-y)$ $(x-2y)(x-y)$
asked Apr 1, 2020 in Quantitative Aptitude Lakshman Patel RJIT 10.7k points 118 744 833 151 views
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1 answer
4
The $LCM$ of two numbers is $45$ times their $HCF$. If the sum of the $LCM$ and the $HCF$ of these two numbers is $1150$ and one of the numbers is $125$, then the other number is : $256$ $225$ $250$ $255$
asked Mar 31, 2020 in Quantitative Aptitude Lakshman Patel RJIT 10.7k points 118 744 833 578 views
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1 answer
5
Let $N$ be the greatest number that will divide $1305, 4665$ and $6905$, leaving the same remainder in each case. Then sum of the digits in $N$ is $4$ $5$ $6$ $8$
asked Mar 30, 2020 in Quantitative Aptitude Lakshman Patel RJIT 10.7k points 118 744 833 308 views
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6
Outside a sweet shop, its name "Madhu Sweet House" is displayed using blinking lights. Each word flashes at a regular interval and remains lit for $1$ second. After remaining lit for $1$ second, "Madhu" remains unlit for $3 \dfrac{1}{2}$ seconds, "Sweet" remains ... words flash together and the next time the last two words flash together $45$ seconds $22.5$ seconds $112$ seconds $6.75$ seconds
asked Mar 6, 2020 in Quantitative Aptitude admin 2.4k points 87 174 237 166 views
1 vote
1 answer
7
Which of the following represents the largest 4 digit number which can be added to 7249 in order to make the derived number divisible by each of 12, 14, 21, 33, and 54. (a) 9123 (b) 9383 (c) 8727 (d) None of these
asked May 13, 2018 in Quantitative Aptitude Sahil Sawant 28 points 1 1 3 2.6k views
1 vote
1 answer
8
Find the minimum number of square tiles required to pave the floor of a room of 3m 25cm long and 2m 50cm broad? 144 130 156 168
asked Nov 27, 2017 in Quantitative Aptitude Parshu gate 54 points 3 3 5 562 views
2 votes
1 answer
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asked Sep 7, 2017 in Quantitative Aptitude Abhishek 2 32 points 1 1 2 18.0k views
1 vote
1 answer
10
Three bells chime at an interval of 18, 24 and 32 minutes respectively. At a certain time they begin to chime together. What length of time will elapse before they chime together again? 2 hours 24 minutes 4 hours 48 minutes 1 hour 36 minutes 5 hours
asked Aug 29, 2017 in Quantitative Aptitude makhdoom ghaya 7.9k points 234 899 1073 750 views
1 vote
1 answer
11
i tried to solve this question but ans did.come .so how can be sove this question
asked Apr 30, 2017 in Quantitative Aptitude prem8954 26 points 1 1 1 6.7k views
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1 answer
12
A red light flashes $3$ times per minute and a green light flashes $5$ times in two minutes at regular intervals. If both lights start flashing at the same time, how many times do they flash together in each hour? $30$ $24$ $20$ $60$
asked Mar 31, 2016 in Quantitative Aptitude go_editor 13.3k points 306 2250 2467 828 views
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13
In a book store, each of the word of the glowsign board “MODERN BOOK STORES” is visible after $5/2, 17/4$ and $41/8$ seconds respectively. Each of them is put off for $1$ second. Find the time after which one person can see a completely visible glowsign board. $73.5$ seconds $79.4$ seconds $68.2$ seconds None of these
asked Mar 2, 2016 in Quantitative Aptitude go_editor 13.3k points 306 2250 2467 488 views
1 vote
1 answer
14
Calculate number of pairs Whose LCM is 800 and HCF is 20
asked Jan 9, 2016 in Quantitative Aptitude pC 442 points 3 6 19 969 views
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