Mathmetics

ISBT Mathmetics for all banking PO,Clerk,IBPS PO,Railway,SSC,IAS,OAS Exams

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Q1.
Direction: Data below represent the number of people required for various projects to be completed in various days:

Project                      Situation 1                                                             Situation 2
                 Number of workers       Days required          Number of workers       Days required
 A              X                                   88                                                  X+8             66
 B              Y                                  Y-1                                                  Y+6                    Y-6
 C              Z2                           75                                                   M2                    108

1) 60 days 2) 80 days
3) 90 days 4) 120 days
5)None of these
Answer : 90 days
Explanation : Total workers = 0.5Z * 2 M = 0.5 * (1.2 M) * 2 M = 1.2 M2 Total work = M2 * 108 = 1.2 M2 * No of days = > No of days = (M2 * 108) / (1.2 M2 ) = 90 days
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Q2.
Direction: Data below represent the number of people required for various projects to be completed in various days:

Project                      Situation 1                                                             Situation 2
                 Number of workers       Days required                  Number of workers       Days required
 A              X                                   88                                                  X+8             66
 B              Y                                  Y-1                                                  Y+6                    Y-6
 C              Z2                           75                                                   M2                    108

If 64 people were working for Project A, how many days did it take to complete the work?
1) 33 days 2) 22 days
3) 36 days 4) 44 days
5)None of the
Answer : 33 days
Explanation :
Solutions:
Project A:
 X * 88 = (X + 8) * 66
 = > 88X = 66X + 8 * 66 = > 22X = 8 * 66   = > X = 24

Project B:
Y * (Y - 1) = (Y + 6) * (Y - 6)
Y2 – Y = Y2 – 62
= > Y = 36

Project C:
Z2 * 75 = M2 * 108
= > Z2 / M2 = 108/75
= > Z2 / M2 = 36/25
= > Z / M = 6/5
= > Z = 6/5 * M
= > Z = 1.2 M

M1 * D1 = M2 * D2 
24 * 88 = 64 * D2 
= > D2 = (24 * 88)/64 
= > D2 = 33 days
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Q3.
Direction- Given here is a pie chart of the cost of gold in 2010, 2011, 2012 and 2013. Study the chart and answer the following questions.
 

If the price of gold in 2013 is Rs. 31,500 per 10 gram, then what is the price of gold in 2011 per 10 gram ?
1) Rs.17000 2) Rs.17500
3) Rs.18000 4) Rs.18500
5)None of these
Answer : Rs.17500
View Answer

Q4.
Direction- Given here is a pie chart of the cost of gold in 2010, 2011, 2012 and 2013. Study the chart and answer the following questions.

What is the ratio of the price of gold in the two years 2010 and 2013 ?
1) 1:2 2) 1:3
3) 3:4 4) 2:5
5)None of these
Answer : 1:3
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Q5.
Direction- Given here is a pie chart of the cost of gold in 2010, 2011, 2012 and 2013. Study the chart and answer the following questions.
.

What is the percentage of increase in the price of gold from the year 2011 to 2013 ?
1) 50% 2) 60%
3) 70% 4) 80%
5)None of these
Answer : 80%
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Q6.
Direction- Given here is a pie chart of the cost of gold in 2010, 2011, 2012 and 2013. Study the chart and answer the following questions.


     

What  is the ratio of percentage of increase in price of gold from 2011 to 2012 and 2012 to 2013 ?
1) 6:5 2) 7:5
3) 8:5 4) 9:5
5)None of these
Answer : 7:5
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Q7.
Directions : Study the following graph carefully and answer the question below it.

Percent Profit  earned by two companies A and B over the given years.


Ratio of expenditures of companies A and B in 2010 was 7 : 8 respectively. What was the ratio of their incomes in 2010 ? 
1) 118 : 163 2) 128 : 119
3) 121 : 147 4) 163 : 118
5)None of these
Answer : None of these
Explanation :
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Q8.
Directions : Study the following graph carefully and answer the question below it.

Percent Profit  earned by two companies A and B over the given years.




Total expenditure of company A in all the years together was Rs. 76.5 lakhs. What was the total income of the company in all the years together ?
1) Rs. 98.5 lakhs 2) Rs. 89.3 lakhs
3) Rs. 92.6 lakhs 4) Can’t be determined
5)None of these
Answer : Can’t be determined
Explanation :
As the percentage profits are different for different years, we can not find the total income

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Q9.
Directions : Study the following graph carefully and answer the question below it.

Percent Profit  earned by two companies A and B over the given years.



Expenditures of company B in 2007 and 2008 are Rs. 25 lakhs and Rs. 30 lakhs respectively. What was the total income of company B in 2007 and 2008 together ?

1) Rs. 74.8 Lakhs 2) Rs. 85.5 Lakhs
3) Rs. 68.4 Lakhs 4) Rs. 78.5 Lakhs
5)None of these
Answer : Rs. 85.5 Lakhs
Explanation :
View Answer

Q10.
Directions : Study the following graph carefully and answer the question below it.

Percent Profit  earned by two companies A and B over the given years.


If the income of company B in 2008 and 2009 were in the ratio 3 : 5 respectively, what was the ratio of the expenditure of that company in these two years ?
1) 4 : 15 2) 7 : 12
3) 9: 16 4) Cannot determined
5)None of these
Answer : 9: 16
Explanation :
View Answer

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