Mathmetics
ISBT Mathmetics for all banking PO,Clerk,IBPS PO,Railway,SSC,IAS,OAS Exams
Q21. |
|
| 1) | 280 | 2) | 240 |
| 3) | 270 | 4) | 284 |
| 5) | None of these | ||
Answer : 280
Explanation :
Explanation :
Let the number of females be x.
According to equation (160 x 4)/3x = 16/21 or x = 280
View AnswerQ22. |
|
| 1) | 17000 and 4500 | 2) | 10000 and 2000 |
| 3) | 20000 and 5000 | 4) | 15000 and 1000 |
| 5) | None of these | ||
Answer : 20000 and 5000
Explanation :
Explanation :
Let, the income of Mohan and Sohan are 7x and 2x respectively.
While their expenditure ratio are 4y and y respectively.
According to equation 7x - 4y = 2x - y = 1000
Or 7x - 4y = 1000
Or 2x - y = 1000
After solving, we get y = 5000
So, there expenditure are 5000 x 4 = 20000 and 5000 x 1= 5000
View AnswerQ23. | If the income of A, B and C is in the ratio of 2:5:11 and the income of B is Rs. 291 more than that of A, then the income of C is-- |
| 1) | Rs.907 | 2) | Rs.1127 |
| 3) | Rs.1067 | 4) | Rs.1175 |
| 5) | None of these | ||
Answer : Rs.1067
Explanation :
Explanation :
Let their incomes are in the ratio 2x , 5x and 11x respectively.
According to equation 5x - 2x = Rs. 291
Or x = 97
So, Income of C = 11 x 97= Rs.1067
View Answer