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### Mathmetics

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

##### The ratio between the perimeter and the breadth of a rectangle is 5 : 1. If the area of the rectangle is 216 sq. cm, what is the length of the rectangle ?
 1) 16 cm 2) 18 cm 3) 24 cm 4) Data Inadequate 5) None of these
Explanation :
2(l + b) /b = 5/1 or 2l + 2b = 5b
or  3b = 2l   b =2l/3
Then, Area = 216 cm2
l x b = 216
l x2l/3  = 216 or l= 324
or l = 18 cm. View Answer
##### The area of a rectangular field is 460 sq. mtrs. If the length is 15% more than the breadth, what is the breadth of the rectangular field ?
 1) 15 mtrs 2) 26 mtrs 3) 25 mtrs 4) 20 mtrs 5) None of these
Explanation :  View Answer
##### The perimeter of a rectangular field is 480 meters and the ratio between its length and breadth is 5 : 3. What will be it's  area ?
 1) 132 sq.m 2) 155 sq. m 3) 135 ares 4) 155 ares 5) None of these
Explanation :  View Answer
##### 1) 0 2) 1 3) 2 4) 3 5) None of these
Explanation :  View Answer
##### 1) 21 2) 23 3) 25 4) 27 5) None of these
Explanation : We  know that,  View Answer
##### 1) 1 2) 2 3) 4 4) 5 5) None of these
Explanation :  View Answer
##### a
 1) z 2) x 3) c 4) c View Answer
##### A rectangular carpet has an area of 60m2. Its diagonal and longer side together equal to five times the shorter side. What is the length of the carpet ?
 1) 5m 2) 12m 3) 15m 4) 24m 5) None of these
Explanation : Given, lb = 60 m2
and d2 = l2 + b2      and d + l = 5b
or d = 5b - l
So, d2 = 25b2 + l2 - 10bl
or l2 + b2 = 25 b2 + l2 - 10 x 60
or 24 b2 = 600
or b = 5
Therefore, l = 60/5 = 12 m View Answer
##### The length of a rectangular plot of land is three times as much as its breadth. A playground measuring 1200 sq. ft. occupies one-forth of the total area of the plot.What is the length of the plot ?
 1) 40 2) 120 3) 360 4) Data Inadequate 5) None of these
Explanation : Let, the length of and breadth of the rectangular plot of land  be 3x and x respectively.
Total area of the plot  = 4  x 1200 = 1200 sq. ft.
So, 3x x = 4800
or 3x2 = 4800
or x = 40 ft.
Therefore length =  3 x 40 =120 ft. View Answer
##### The sum of the squares of two positive integers is 208. If the square of the larger number is 18 times the smaller number, then what would be the difference of the larger and smaller numbers ?
 1) 2 2) 3 3) 4 4) 6 5) None of these View Answer