121.
Which of the following represents a correct proportion ?

122.
If A : B = 7 : 9 and B : C = 3 : 5 then A : B : C is equal to = ?

123.
The ratio of the length of a school ground to its width is 5 : 2. If the width is 40m, then the length is = ?

124.
The sum of the squares of three numbers is 532 and the ratio of the first and the second as also of the second and the third is 3 : 2. The third number is -

125.
Two numbers are in the ratio 17 : 45. One third of the smaller is less than $$\frac{{\text{1}}}{{\text{5}}}$$ of the bigger by 15. The smaller number is -

126.
Incomes of A, B, and C are in the ratio 7 : 9 : 12 and their respective expenditures are in the ratio 8 : 9 : 15. If A saves $$\frac{{\text{1}}}{{\text{4}}}$$ of his income, then the ratio of their savings is -

127.
The ratio of the ages of two persons is 4 : 7 and the age of one of them is greater than that of the other by 30 years. The sum of their ages (in years) is = ?

128.
A box contains 280 coins of one rupee, 50 paise and 25 paise. The value of each kind of the coins are in the ratio of 8 : 4 : 3. Then the number of 50 paise coins is = ?

129.
A policeman starts to chase a thief. When the thief goes 10 steps the policeman moves 8 steps and 5 steps of the policeman are equal to 7 steps of the thief. The ratio of the speed of the policeman and the thief is = ?

130.
The total emoluments of A and B are equal. However, A gets 65% of his basic salary as allowances and B gets 80% of his basic salary as allowances. What is the ratio of the basic salaries of A and B ?

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