stuck in quant. no system please help

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i have stucked in the basic of the quant number system please help i 9 they are too basic but i think if our basic is strong then only v can score high on gmat . 1) find the greatest no of four digits which when divided by 10,11,15 and 22 l...
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i have stucked in the basic of the quant number system please help
i 9 they are too basic but i think if our basic is strong then only v can score high on gmat .

1) find the greatest no of four digits which when divided by 10,11,15 and 22 leaves 3,4,8 and 15 as reminders respectively.
a) 9907 b) 9903 c) 9893 d) none of the above

10 - 3 = 11 - 4 = 15 - 8 = 22 - 15 = 7

Find LCM(10, 11, 15, 22) = x
Then, find 4 digit number which satisfies (x*k - 7) where k = natural number;


2) how to find the LCM of 4.5, 0.009 and 0.18

LCM(a/b , c/d, e/f) = LCM(a, c, e)/HCF(b, d, f)

3) Smallest square no . which is exactly divisible by 2,3,4,-9,6,18,36 and 60 is
a) 900 b) 1600 c) 3600 d) none of the above.

Similar to (1) ... x = LCM (2, 3, 4, -9,....,60) ;



Regards
Soham
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i have stucked in the basic of the quant number system please help
i 9 they are too basic but i think if our basic is strong then only v can score high on gmat .

1) find the greatest no of four digits which when divided by 10,11,15 and 22 leaves 3,4,8 and 15 as reminders respectively.
a) 9907 b) 9903 c) 9893 d) none of the above

2) how to find the LCM of 4.5, 0.009 and 0.18

3) Smallest square no . which is exactly divisible by 2,3,4,-9,6,18,36 and 60 is
a) 900 b) 1600 c) 3600 d) none of the above.

Commenting on this post has been disabled by the moderator.