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Mathmetics

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

In a test, minimum passing percentage for girls and boys is 35% and 40% respectively. A boy scored 483 marks and failed by 117 marks. What is the minimum passing marks for girls ?
 1) 425 2) 480 3) 520 4) 625 5) None of these
Answer : None of these
Explanation : Let, the full mark be 100%.
A boy should requires marks to pass =  483 +117 = 600
So, the full mark = 600  i.e. 100%
So, the required mark for a girl should = (600/40) x 35 = 525
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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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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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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 :
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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 :
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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 expenditure of company A and B in 2011 were equal and the total income of the two companies was Rs. 48.8 lakhs, what was the total expenditure of the two companies in 2011 ?
 1) Rs.32 lakhs 2) Rs.46 lakhs 3) Rs.16 lakhs 4) Cannot determined 5) None of these
Answer : Rs.32 lakhs
Explanation :
Total expenditure of A and B in 2011 = 2 x 16 = 32 lakhs
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Seven men and four boys can complete a work in 6 days. A man completes the double work than a boy. In how many days will 5 men and 4 boys complete the work ?
 1) 4 2) 5 3) 6 4) 8 5) None of these
Answer : None of these
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Directions : Study the graphs carefully to answer the questions that follow: Total number of children in six different schools and the percentage of girls are give bellow in the line-chart.The numbers of boys in school Q is how much percentage (approx.) more or less than the numbers of girls in  the school  S  ?
 1) 140 2) 142 3) 144 4) 148 5) None of these
Answer : 142
Explanation : The numbers of boys in school Q = (3000 x 55/100)  = 1650
The numbers of girls in  the school  S  = (2250 x 30/100) = 675
So, different = 1650 - 675 = 975
Therefore , required more % = (975/675) x 100 = 144 % (approx.)
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Directions : Study the graphs carefully to answer the questions that follow: Total number of children in six different schools and the percentage of girls are give bellow in the line-chart.What is number of boys in school P and Q are more than girls in school of S and T ?
 1) 1475 more 2) 1655 less 3) 1875 more 4) 1975 more 5) None of these
Answer : 1975 more
Explanation : Total number of boys in school P and Q = [ (2500 x 60/100) + (3000 x 55/100) ] =1500 + 1650 = 3150.
Total number of girls in school S and T = [ (2250 x 30/100) +  (1250 x 40/100) ] = 675 + 500 = 1175

So, the different = 3150 -1175 = 1975

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Directions : Study the graphs carefully to answer the questions that follow: Total number of children in six different schools and the percentage of girls are give bellow in the line-chart.What is the total number of boys in School S ?
 1) 675 2) 1250 3) 1475 4) 1575 5) None of these
Answer : 1575
Explanation : Given ,total numbers of children is 2250 and percentage of girls 30.
So, percentage of boys =  2250 x 70/100 = 1575
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