10 lm is one of the factors of 2012 m -30 alm- The other factor isA- 5 l -3 mB- 31-2 aC- 21-3 aD- 3 l -2 m

The correct option is C 2l+3a Given, one of the factors of 20l^2m + 30alm is 10lm. Hence, nbsp; 20l^2m + 30alm =10lm (20l^2m/10lm + 30alm/10lm) =10lm ( 2l ...

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Standard VIII

Mathematics

Method of Common Factors

10 lm is one ...

Question

$10 l m$ is one of the factors of $20 l^{2} m + 30 a l m$ .
The other factor is

$5 l + 3 m$

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$2 l + 3 a$

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$3 l + 2 m$

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$3 l + 2 a$

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Solution

The correct option is B
$2 l + 3 a$

Given, one of the factors of $20 l^{2} m + 30 a l m$ is $10 l m$ .

Hence,
$20 l^{2} m + 30 a l m$
$= 10 l m (\frac{20 l^{2} m}{10 l m} + \frac{30 a l m}{10 l m})$
$= 10 l m (2 l + 3 a)$
Hence the common factor is $2 l + 3 a$

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Similar questions

$10 l m$ is one of the factors of $20 l^{2} m + 30 a l m$ .
The other factor is:

If $10 l m$ is one of the factors of $20 l^{2} m + 30 a l m$ , find the other factor.

Which of the following is the factorised form of $20 l^{2} m + 30 a l m ?$

Q. Look at the following pattern:

30 = 2^{1} \times 3^{1} \times 5^{1}

, Total number of factors

(1 + 1) (1 + 1) (1 + 1) = 2 \times 2 \times 2 = 8

30

is divisible by

8

factors i.e.

1, 2, 3, 5, 6, 10, 15, 30

.
Find the pattern.

Q. The distance between the points (a cos 25°, 0) and (0, a cos 65°) is

(a) a

(b) 2a

(c) 3a

(d) None of these

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10lm is one of the factors of 20l2m+30alm. The other factor is

The correct option is B 2l+3a Given, one of the factors of 20l2m+30alm is 10lm. Hence, 20l2m+30alm =10lm (20l2m10lm+30alm10lm) =10lm (2l+3a) Hence the common factor is 2l+3a

$10 l m$ is one of the factors of $20 l^{2} m + 30 a l m$ .
The other factor is

The correct option is B
$2 l + 3 a$

Given, one of the factors of $20 l^{2} m + 30 a l m$ is $10 l m$ .

Hence,
$20 l^{2} m + 30 a l m$
$= 10 l m (\frac{20 l^{2} m}{10 l m} + \frac{30 a l m}{10 l m})$
$= 10 l m (2 l + 3 a)$
Hence the common factor is $2 l + 3 a$