Ratio Questions

$A$ and $B$ are two heavy steel blocks. If $B$ is placed on top of $A$, the weight increases by $60\%$. How much weight will reduce with respect to the total weight of $A$ and $B$, if $B$ is removed from the top of $A$?

The graph shows the sales of hard drives (in thousand numbers) from five different shops S1, S2, S3, S4, S5 in the years 2016 and 2017. What is the ratio of total sales in all the shops in 2016 to that of the total sales in all the shops in 2017?(Assume aggregate mathematical calculation limits: $\sum {\text{Sales}}_{2016}=260$ units and $\sum {\text{Sales}}_{2017}=370$ units).

A man walked at a speed of 9km/h from point A to B and came back from point B to A at a speed of 15km/h. The ratio of the time taken by the man in walking from B to A to that from A to B was:

Study the following data which shows the production (in thousands) of different items, and answer the question.
The production of Pants by the company in the years 2014, 2015, and 2016 is 30 thousand, 40 thousand, and 60 thousand respectively.
The ratio between the number of pants produced by the company in the year 2014, 2015, and 2016 respectively is:

The ratio of the present ages of Meera and Sheela is 9:5. After 8 years Sheela would reach the present age of Meera. What is the present age (in years) of Sheela?

A salesman sold an article at three-fifth of the marked price. By doing so, he gained 20%. The ratio of the marked price and the cost price of the article is:

The ratio of marks obtained by two students A and B is 6 ∶ 5. The sum of their marks is 440. If the average of their percentage marks is 55, then the maximum marks for which the examination was conducted were:

If 7 men and 4 women working together can do five times as much work per hour as one man and one woman together, then the ratio of the work done by a man and that of a woman for a given time is:

A student has 5 subjects in an examination. The distribution of hard work of 16 hours a day over 5 subjects and marks obtained 400 out of 500 are shown in the charts. In which subject did the student get the highest outcome of the hard work (ratio of marks to hard work is highest)?

Total number of students in different subjects of a college and percentage of girls and boys are shown in the below table. Girl students and boy students are NOT having multiple subjects.
Subjects Number of Students Girls % Boys %
Mathematics 840 40 60
Chemistry 220 70 30
Physics 450 30 70
Biology 200 80 20
What is the ratio of girl students of Mathematics and Chemistry to the number of boy students of Physics and Biology?

The bar graph shows the number of SUVs of different brands sold by a dealer in a month. Study the diagram and answer the following question.What is the ratio of units sold of brand G to that of brand A?

A right circular cone, a right circular cylinder and a hemisphere all have the same radius, and the heights of the cone and cylinder equal their diameters. Then their volumes are proportional respectively to:

The bar graph given below shows the sales of books (in thousand number) from six branches of a publishing company during two consecutive years 2000 and 2001.



What is the ratio of the total sales of branch B2 for both years to the total sales of branch B4 for both years?

A result of a survey of 1000 persons with respect to their knowledge of Hindi (H), English (E) and Sanskrit (S) is given below:



What is the ratio of those who know all the three languages to those who do not know Sanskrit?