Mathmetics
ISBT Mathmetics for all banking PO,Clerk,IBPS PO,Railway,SSC,IAS,OAS Exams
Q51. |
Direction: read the following the bar graph given below and give the answer: The bar graph given below shows the foreign exchange reserves of a country (in million US $) from 1991-92 to 1998-99. : ![]() The ratio of the number of years, in which the foreign exchange reserves are above the average reserves, to those in which the reserves are below the average is: |
| 1) | 2:5 | 2) | 3:5 |
| 3) | 3:4 | 4) | 4:7 |
| 5) | None of these | ||
Answer : 3:5
Explanation :
Explanation :
Average foreign exchange reserves over the given period is = 3480 million US $
The country had reserves above 3480 million US $ during the years 1992-93, 1996-97 and 1997-98. So three years is was above the average and for rest of five years it was below the average
So required ratio is 3:5
View AnswerQ52. |
Direction: read the following the bar graph given below and give the answer: The bar graph given below shows the foreign exchange reserves of a country (in million US $) from 1991-92 to 1998-99. : ![]() FOr which year, the percent increase of foreign exchange reserves over the previous year is the highest ? |
| 1) | 1992-93 | 2) | 1994-95 |
| 3) | 1995-96 | 4) | 1998-99 |
| 5) | None of these | ||
Answer : 1992-93
Explanation :
Explanation :
Lets calculate the percentage increase of these years compared to previous years :
For year 1992-93 =(3720−2640)/2640 x100 = 40.91%
For year 1994-95 = (3360−2520) /2520 x100 = 33.33%
For year 1996-97 = (4320−3120) /3120x100 = 38.46%
For year 1997-98 = (5040−4320) /4320∗100 = 16.67%
View AnswerQ53. |
![]() |
| 1) | 85% | 2) | 90% |
| 3) | 100% | 4) | 105% |
| 5) | None of these | ||
Answer : 100%
Explanation :
Explanation :
Foreign exchange reserve in 1997-98 = 5040 million US $
Foreign exchange reserve in 1993-94 = 2520 million US $
Increase = 5040 - 2520 = 2520 million US $
So, the percentage Increase =(2520 / 2520) x100 = 100%
View AnswerQ54. |
Direction: read the following the bar graph given below and give the answer: The bar graph given below shows the foreign exchange reserves of a country (in million US $) from 1991-92 to 1998-99. : ![]() |
| 1) | 1.2 | 2) | 1.5 |
| 3) | 2.5 | 4) | 3 |
| 5) | None of these | ||
Answer : 1.5
Explanation : Required Ratio = 5040 / 3360 = 1.5
Explanation : Required Ratio = 5040 / 3360 = 1.5
View AnswerQ55. |
Direction : Study the following pie - chart and the table and answer the questions based on them. Proportion of Population of Seven Villages in 2013. ![]() Village % Population Below Poverty Line X 38 Y 52 Z 42 R 51 S 49 T 46 V 58 Find the population of village S if the population of village X below poverty line in 2013 is 12160. |
| 1) | 16500 | 2) | 18500 |
| 3) | 20100 | 4) | 22000 |
| 5) | None of these | ||
Answer : 22000
Explanation :
Explanation :
Let, the population of village X be x.
Then, 38% of x = 12160 => x = (12160 x 100) /38 = 32000.
Now, if s be the population of village S, then
16 : 11 = 32000 : s => s =(11 x 3200) /16= 22000.
View AnswerQ56. |
Direction : Study the following pie - chart and the table and answer the questions based on them. Proportion of Population of Seven Villages in 2013. ![]() Village % Population Below Poverty Line X 38 Y 52 Z 42 R 51 S 49 T 46 V 58 The ratio of population of village T below poverty line to that of village Z below poverty line in 2013 is: |
| 1) | 11:21 | 2) | 11:23 |
| 3) | 12:13 | 4) | 23:11 |
| 5) | None of these | ||
Answer : 23:11
Explanation :
Explanation :
Let, N be the total population of all the seven villages.Then, population of village T below poverty line = 46% of (21% of N) and Population of villages Z below the poverty line = 42% of (11% of N)Therefore, required ratio = 46% of (21% of N) / 42% of (11 % of N)= (46 x 21) /(42 x 11)= 23/11.
Let, N be the total population of all the seven villages.
Then, population of village T below poverty line = 46% of (21% of N) and Population of villages Z below the poverty line = 42% of (11% of N)
Therefore, required ratio = 46% of (21% of N) / 42% of (11 % of N)= (46 x 21) /(42 x 11)
= 23/11.
View AnswerQ57. |
Direction : Study the following pie - chart and the table and answer the questions based on them. Proportion of Population of Seven Villages in 2013. ![]() If the population of village R in 2013 is 32000, then what will be the population of village Y below poverty line in that year ? |
| 1) | 14500 | 2) | 15600 |
| 3) | 16200 | 4) | 17500 |
| 5) | None of these | ||
Answer : 15600
Explanation :
Explanation :
Population of village R = 32000 (given).
Let, the population of village Y be y.
Then, 16 : 15 = 32000 : y => y = (15 x 32000)/16= 30000.
Therefore ,Population of village Y below poverty line = 52% of 30000 = 15600.
View AnswerQ58. |
Directions : Study the following bar-graph and answer the questions given below. Number of Bike A and B type sold over the years in thousand. ![]() Number of bikes of B type in year 2007 is what percent of total number of bikes of B type in all the years together ?(Round off to two digits after decimal). |
| 1) | 6.5% | 2) | 7.5% |
| 3) | 8% | 4) | 12% |
| 5) | None of these | ||
Answer : 7.5%
Explanation :
Explanation :
B type in 2007 =15000
B type in all years together = 2,00,000
Percent = [15000 / 200000] x100 = 7.5%
View AnswerQ59. |
|
| 1) | 1:2 | 2) | 2:1 |
| 3) | 2:3 | 4) | 3:4 |
| 5) | None of these | ||
Answer : 1:2
Explanation :
Explanation :
Total number of bikes of A type in year 2004, 2006, 2007 = 10,000 + 20,000 + 25,000 = 55,000
Total number of bikes of B type in year 2002, 2004, 2005 = 20,000 + 35,000 + 55,000= 1,10,000
So,ratio = 55,000 : 1,10,000 = 1:2
View AnswerQ60. |
Direction : Study the following bar chart and answer the questions carefully. Sales Turnover of 5 Companies (in Rs. crores) ![]() What should have been the sales turnover of GM in 2002 - 2003 to have shown an excess of the same quantum over 2001 - 2002 as shown by the sales turnover of Maruti ? |
| 1) | 956.46 | 2) | 958.96 |
| 3) | 962.76 | 4) | 972.76 |
| 5) | None of these | ||
Answer : 962.76
Explanation :
Explanation :
GM should have increased its sales turnover by Rs.49.13 crore. Hence, the answer is 913.63 + 49.13 = 962.76.
View Answer




