Ratio & Proportion · Quantitative Aptitude · SSC CGL Tier I

The third proportional to 7 and 63 is:

Avinash’s monthly salary is ₹50,000 and his monthly expenditure is ₹18,000. Radha’s monthly salary is ₹60,000 and her monthly expenditure is ₹24,000. Find the ratio of Radha’s savings to Avinash’s saving’s.

Soham’s initial expenditure and savings were in the ratio of 5 ∶ 3. His income increases by 25%. If his initial savings were ₹4,500, find his income (in ₹) after the increment.

If the third proportional of 3x² and 4xy is 48, then find the positive value of y.

The following table shows the number of delivery partners (in thousands) who joined five different companies during six different years.

Year	Companies
	Emazon	Clipkart	Twiggy	Tomato	Pyntra
2016	2.4	4.5	1.2	0.9	4.2
2017	1.8	5.4	1.5	1.2	5.6
2018	3.2	7.2	2.4	2.1	6.3
2019	3.9	5.6	2.8	2.7	6.5
2020	4.2	6.4	3.2	3.3	7.0
2021	5.0	7.2	3.6	3.6	7.2

Find the ratio of the number of delivery partners who joined Clipkart (in 2019 and 2020) to the number of delivery partners who joined Tomato (in 2019 and 2020).

Which of the following is the smallest ratio?

$\frac{5}{6}, \frac{7}{9}, \frac{11}{12}, \frac{13}{18} $

The force (in pound-force) needed to keep a car from skidding on a curve varies directly with the weight of the car (in pounds) and the square of its speed (in miles per hour [mph]) and inversely with the radius (in feet) of the curve. Suppose 6125 pound force is required to keep a 2750 pound car, travelling at a speed of 35 mph, from skidding on a curve of radius 550 feet. How much pound-force is then required to keep a 3600 pound car, travelling at a speed of 50 mph, from skidding on a curve of radius 750 feet?

What smallest positive number should be subtracted from 2 and 3 so that 4 is the third proportion to them?

The ratio of the number of boys in a school to the total number of boys and girls in that school is 7 ∶ 17. If the number of boys in that school is 1099, then how many girls are there in that school?

The following table shows the percentage of population of five states below poverty line and the proportion of males and females below and above poverty line.

State	Percentage of Population	Proportion of Males and females
		Below Poverty Line	Above Poverty Line
		Males : Females	Males : Females
A	25%	7 : 3	1 : 5
B	13%	8 : 5	1 : 7
C	26%	9 : 4	2 : 11
D	11%	4 : 3	13 : 4
E	17%	5 : 9	3 : 2

If the population of state B and State C is 6,000 each, then what is the total number of females below poverty line in these two states?