If 50-of-x-y-30- nbsp-of- -x-y- then what percent of x is y- 33 1-3-40-25-400-

The correct option is C 25%Given, 50/100 of (x y)=30/100 of (x+y) 50/100(x y)=30/100(x+y) 5(x y) = 3(x+y) 5x 5y=3x+3y x=4y y=1/4x y=1/4×100/100× x y=2 ...

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Byju's Answer

Standard VII

Mathematics

Converting Ratios to Percentages

If 50% of (x-...

Question

If $50 % of (x - y) = 30 % of (x + y)$ , then what percent of $x$ is y?

25 %

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33 \frac{1}{3} %

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40 %

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400 %

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Solution

The correct option is A $25 %$
Given, $\frac{50}{100} of (x - y) = \frac{30}{100} of (x + y)$

$⟹ \frac{50}{100} (x - y) = \frac{30}{100} (x + y)$

$⟹ 5 (x - y) = 3 (x + y)$

$⟹ 5 x - 5 y = 3 x + 3 y$

$⟹ x = 4 y$

$⟹ y = \frac{1}{4} x$

$⟹ y = \frac{1}{4} \times \frac{100}{100} \times x$

$⟹ y = \frac{25}{100} \times x$

$⟹ y = 25 % \times x$

$∴ y is 25 % of x .$

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Similar questions

Q. If

50 %

(x - y) = 30 %

of (x+y), then what percent of `x’ is `y’?

Q. If 50% of (x - y) = 30% of (x + y). then what percent of x is y?

Q. Solve this:
Q.2. If 50 % of (x - y) = 30 % of (x + y), then what percent of 'x' is 'y'?

x

40 %

y

. 50% of

y

40

Then

16

is what percent of

x

Class	$0 - 10$	$10 - 20$	$20 - 30$	$30 - 40$	$40 - 50$	$50 - 60$
Frequency	$7$	$12$	$x$	$28$	$y$	$9$

Mode of above data is

33 \frac{1}{3}

and total frequency is

100

. Find

x

and

y

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If 50% of (x−y)=30% of (x+y), then what percent of x is y?

The correct option is A 25%Given, 50100 of (x−y)=30100 of (x+y) ⟹50100(x−y)=30100(x+y) ⟹5(x−y)=3(x+y) ⟹5x−5y=3x+3y ⟹x=4y ⟹y=14x ⟹y=14×100100×x ⟹y=25100×x ⟹y=25%×x ∴y is 25% of x.

If $50 % of (x - y) = 30 % of (x + y)$ , then what percent of $x$ is y?