Quantitative Aptitude - Online Test
Q1. Direction: Study the following graph carefully and then answer the questions based on it. The percentage of five different types of electricity generation produced by a country during two years is given below.
If the production of wind electricity produced in 2014 was the same as that of 2015, what would have been its approximate percentage share in the total production of 2015?
Answer : Option B
Explaination / Solution:
Production of wind electricity in 2014 = Production of wind electricity in 2015
∴ Production of wind electricity in 2014 = (100 – 85) % of 4250 = 637.5 TWh
∴Required percentage = 637.5/7940 × 100 =8.02% ≈ 8%
Q2. Direction: Study the following graph carefully and then answer the questions based on it. The percentage of five different types of electricity generation produced by a country during two years is given below.
What is the maximum percentage increase in any kind of electricity from 2014 to 2015?
Answer : Option D
Explaination / Solution:
Clearly the maximum percentage increase is in solar electricity from 2014 to 2015
Solar electricity in 2014 = 10% of 4250 TWh = 425 TWh
Solar electricity in 2015 = 25% of 7940 TWh = 1985 TWh
∴Required percentage = (1985-425)/425 × 100 = 367.05%≈ 367%
Q3. Direction: Study the following graph carefully and then answer the questions based on it. The percentage of five different types of electricity generation produced by a country during two years is given below.
What is the difference between the production of electricity from water in 2014 & 2015?
Answer : Option C
Explaination / Solution:
⇒ Percentage production of electricity from water in 2014 = 25% of 4250
⇒ Percentage production of electricity from water in 2014 = 1062.5 TWh
Production of electricity from water in 2015 = 30% of 7940
⇒Production of electricity from water in 2015 = 2382 TWh
∴Required production = 2382 - 1062.5 = 1319.5 TWh
Q4.
Directions: Study the following graph carefully and answer the questions given below:
The production of grocery goods in lakh tons by different companies for three years 2013, 2014 and 2015
The total production by five companies in 2015 is what per cent of the total production by companies Q and R in 2013?
Answer : Option C
Explaination / Solution:
Total production by five companies in 2015
= (30+30+25+25+45) = 155 lakh tons
Total production by companies Q and R in 2013
= (45+15) = 60 lakh tons
Required percentage = (155*100)/60 = 258%
Q5.
Directions: Study the following graph carefully and answer the questions given below:
The production of grocery goods in lakh tons by different companies for three years 2013, 2014 and 2015
What is the ratio between average production by Company Q in three years to the average production by Company R in three years?
Answer : Option A
Explaination / Solution:
Average production by Company Q in three years
= (45+30+15)/3 = 90/3 = 30 lakh
Average production by Company R in three years
= (15+25+35)/3 = 75/3 = 25 lakh
Required ratio = 30:25 = 6 : 5
Q6. For which of the following companies the rise or fall in production of grocery goods from 2013 to 2014 was the maximum?
Answer : Option A
Explaination / Solution:
Company P, the rise in production of grocery goods from 2013 to 2014
= (35-25)/25 *100 = +40 %
Company Q, the fall in production of grocery goods from 2013 to 2014
= (45-15)/45 *100 = -66.66 %
Company R, the rise in production of grocery goods from 2013 to 2014
= (35-15)/15 *100 = +133.33 %
Company S, the rise in production of grocery goods from 2013 to 2014
= (35-20)/20 *100 = +75 %
Company T, the fall in production of grocery goods from 2013 to 2014
= (25-15)/25 *100 = -40 %
So, Maximum rise in company R
Q7. What is the per cent drop in production by Company T from 2013 to 2014?
Answer : Option D
Explaination / Solution:
Company T, the drop in production of grocery goods from 2013 to 2014
= (25-15)/25 *100 = -40 %
Q8. The average production for three years was minimum for which of the following companies?
Answer : Option A
Explaination / Solution:
Average production for three years by Company P
= (25+30+35)/3 = 30 lakh
Average production for three years by Company Q
= (45+30+15)/3 = 30 lakh
Average production for three years by Company R
= (15+25+35)/3 = 25 lakh
Average production for three years by Company S
= (20+25+35)/3 = 26.66 lakh
Average production for three years by Company T
= (25+45+15)/3 = 28.33 lakh
So, average production for three years was minimum by company R
Q9. Directions: What will come in place of question mark (?) in the following question (You do not have to calculate the exact value)?
(112.91 - 9.13 * √49)2 =?
Answer : Option C
Explaination / Solution:
(112.91 - 9.13 * √49)2 =?
(113 - 9 * 7)2 =?
(113 - 63)2 =?
(50)2 =?
? = 2500
Q10. Directions: What approximate value should come in place of question mark (?) in the following question? (Note: You are not expected to calculate the exact value)
783.559 + 49.0937 × 31.679 - 58.591 =?
Answer : Option E
Explaination / Solution:
784 + 49 × 32 - 59 = 2293 = 2290 (Approx)
