Mathmetics

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

Q81.	A 5 cm cube is cut into as many 1 cm cubes as possible. What is the ratio of the surface area of the larger cube to that of the sum of the surface areas of the smaller cubes ?

1)	1 : 6	2)	1 : 5
3)	1 : 25	4)	1 : 125
5)	None of these

Q82.

1)	8	2)	9
3)	10	4)	12
5)	None of these

Q83.	If  a = 4/3, then, what is the value of 27a3 -108a2 + 144a - 317  ?

1)	221	2)	-231
3)	-253	4)	0
5)	None of these

Q84.	A fort has provisions for 250 soldiers for 35 days. After 5 days a reinforcements of 25 soldiers were arrived. Again after 10 days, 25 soldiers left the fort. How long will the remaining provisions lasting ?

1)	12	2)	16
3)	18	4)	19
5)	None of these

Q85.	The ratio of the present age of  A  to that of  B is 3 : 11.  B  is 12 years younger than C. C ''s age after 7 years will be 85 years. What is the present age of  A's  father, who is 25 years older than A ?

1)	33 years	2)	40 years
3)	43 years	4)	48 years
5)	None of these

Q86.	The length of a rectangle is three-fifths of the side of a square. The radius of a circle is equal to side of the square. The circumference of the circle is 132 cm. What is the area of the rectangle if the breadth of the rectangle is 8 cm ?

1)	100.8 sq cm	2)	112.4 sq cm
3)	104.2 sq cm	4)	Cannot be determined
5)	None of these

Q87.	The ratio of the adjacent angles of a parallelogram is 7 : 8. Also, the ratio of the angles of quadrilateral is 5 : 6 : 7 : 12. What is the sum of the smaller angle of the parallelogram and the second largest angle of the quadrilateral ?

1)	136°	2)	156°
3)	168°	4)	208°
5)	None of these

Q88.	The smallest side of a right-angled triangle is 8 cm less than the side of a square of perimeter 56 cm. The second largest side of the right-angled triangle is 4 cm less than the length of the rectangle of area 96 sq cm and breadth 8 cm. What is the largest side of the right-angled triangle ?

1)	10 cm	2)	12 cm
3)	15 cm	4)	18 cm
5)	None of these

Q89.	A boy has 3 library tickets and 8 books of his interest in the library. Of these 8, he does not want to borrow Chemistry part II unless Chemistry part I is also borrowed. In how many ways can he choose the three books to be borrowed?

1)	26	2)	27
3)	41	4)	56
5)	None of these

Q90.	In how many different ways can the letters of the word ‘PREVIOUS’ be arranged in such a way that the vowels always come together?

1)	2420	2)	2880
3)	3260	4)	4840
5)	None of these