Bar Graphs- 1 - Free MCQ Practice Test with solutions, CAT Logical Reasoning

Total number of males/females in 1980 = 1000 each.

Total number males in 2000 = 180 + 205 + 160 + 100 = 645
∴ Number of dead males = 1000 – 645 = 355

Total number females in 2000 = 210 + 175 + 150 + 120 = 655
∴ Number of dead males = 1000 – 655 = 345

⇒ Ratio of dead males to females = 355 : 345 = 71 : 69.

Hence, option (d).

Those who were in the age range 30-40 in 1980 will be in the age range 60-70 in 2010.

Number of people alive in age range 60-70 in 2010 = 90 + 100 = 190

Those who were less than 30 years old in 1980 will be less than 70 years old in 2020.

∴ Number of people alive below 70 in 2020 = 140 + 100 + 125 + 105 = 470

1980 age range 20-30 (500 males) is same as 
2000 age range 40-50 (205 males) is same as 
2010 age range 50-60 (165 males)

∴ Number of required males dying between 2000 and 2010 = 205 – 165 = 40.

1980 age range 20-30 (500) is same as 
2000 age range 40-50 (175) is same as 
2010 age range 50-60 (145 females)

30 people from this category died from 2000 to 2010, but it is not necessary that they were between 50-60 years old.

Someone who was 41 years old in 2000 may have died before he/she attains the age of 50.

The answer to this question should be cannot be determined.

Hence, this question was discarded.

Note: Answer provided in Candidate response sheet is 30.

Office Supplies in 2019:

3.6 (Binders) + 0.4(Art) + 1.9 (Appliances) + 0.4 (Envelopes) + 0.1 (Fasteners) + 0.2 (Labels) + 1.5 (Paper) + 4.3 (Storage) + 1.1 (Supplies) = 13.5

Furniture sales in 2019:
1.9 + 6.2 + 2 + 4.4 = 14.5

Furniture sales in 2020:
2.2 + 7 + 2.1 + 4.5 = 15.8

∴ % change = (15.8 - 14.5)/14.5 × 100% ≈ 8.9%

Of the options given answer is closest to option (c) i.e., 8%.

Only Phones registered an increase of more than 25% from 2019 to 2020 and also had sales of more than $4 million in 2019.

In furniture category, Chairs subcategory has the highest % increase i.e., approx. 15%.
∴ Improvement index for furniture is 15%.

In office supply category, Appliances subcategory has the highest % increase i.e., approx. 60%.
∴ Improvement index for office supply is 60%.

In technology category, Accessories subcategory has the highest % increase i.e., approx. 40%.
∴ Improvement index for technology is 40%.

∴ Improvement index of Furniture < Technology < Office Supplies.