Aptitude · all questions

Ratio
practice.

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332

Questions

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Q141

Open question

Let

\frac{a}{b} : - \frac{b}{a} = x : y .

(x - y) =

{\frac{a}{b} + \frac{b}{a}},

then x is equal to -

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Q142

Open question

\frac{a + b}{c} = \frac{b + c}{a} = \frac{c + a}{b} = k,

then k is equal to -

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Q143

Open question

If x : y = 3 : 4, then the value of (4x - y) : (2x + 3y) is = ?

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Q144

Open question

Three numbers are in the ratio 3 : 4 : 5. The sum of the largest and the smallest equals to the sum of the second number and 52. The smallest number is = ?

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Q145

Open question

A container contains two liquids A and B in the ratio 7 : 5. When 9 litres of mixture are drawn off and the container is filled with B, the ratio of A and B becomes 1 : 1. How many litres of liquid A was in the container initially = ?

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Q146

Open question

If a : b = 2 : 3 and b : c = 4 : 5, then (a + b) : (b + c) is equal to-

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Q147

Open question

The fourth proportion to 5, 8, 15 is-

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Q148

Open question

The fourth proportional to 0.12, 0.21 and 8 is-

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Q149

Open question

In a mixture of 25 litres the ratio of acid to water is 4 : 1. Another 3 litres of water of water is added to the mixture. The ratio of acid to water in the new mixture is = ?

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Q150

Open question

The ratio of weekly income of A and B is 9 : 7 and the the ratio of their expenditure is 4 : 3. If each saves Rs. 200 per week, then the sum of their weekly income is = ?

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Q151

Open question

94 is divided into two parts in such a way that fifth part of the first and the eighth part of the second are in the ratio 3 : 4. The first part is = ?

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Q152

Open question

Fourth proportional to (a² - b²), (a² - ab), (a³ + b³) is

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Q153

Open question

The third proportional to 38 and 15 is -

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Q154

Open question

The mean proportional between

(3 + 2)

and

(12 - 32)

is-

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Q155

Open question

\frac{3 x + 5}{5 x - 2} = \frac{2}{3},

then the value of x is

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Q156

Open question

The number to be added to each of the numbers 7, 16, 43, 79 to make the numbers in proportion is = ?

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Q157

Open question

Two numbers are such that the ratio between them is 4 : 7. If each is increase by 4, the ratio become 3 : 5. The larger number is = ?

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Q158

Open question

The ratio between the third proportional of 12 and 30 and mean proportional of 9 and 25 is -

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Q159

Open question

The present of A, B and C are in the ratio of 8 : 14 : 22 respectively. The present ages of B, C and D are in the ratio of 21 : 33 : 44 respectively. Which of the represents the ratio of the present ages of A, B, C and D respectively?

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Q160

Open question

Rita invested 25% more than sunil. Sunil invested 30% less than Abhinav, who invested Rs. 6000. What is the ratio of the amount that Rita invested to the total amount by all of them together ?

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Ratio
practice.