Sunday, 5 June 2011

SBI-PO 2008 (QUANTITATIVE APTITUDE)

Directions (51-70): What should come in place of the question mark (?) in the following questions?

51. (- 251× 21× - 1) + ? = 158.13
(a) 250   (b) 400
(c) 300    (d) 150
(e) None of these
Ans. (b) (-251 × 21 × - 12) ÷ ? = 158.13

⇒

63252 ?

= 158.13

⇒ ? × 158.13 = 63252

⇒ ? =

63252 158.13

= 400

 

SBI-PO 2008 (QUANTITATIVE APTITUDE)

Directions (51-70): What should come in place of the question mark (?) in the following questions?

51. (- 251× 21× - 1) + ? = 158.13
(a) 250   (b) 400
(c) 300    (d) 150
(e) None of these
Ans. (b) (-251 × 21 × - 12) ÷ ? = 158.13

⇒

63252 ?

= 158.13

⇒ ? × 158.13 = 63252

⇒ ? =

63252 158.13

= 400

 

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SBI-PO 2007 (Quantitative Aptitude)

SBI-PO 2007 (Quantitative Aptitude)

76. The difference between a two digit number and the number obtained by interchanging the position of its digits is  36. What is the difference between the two digits of that number ?
(a) 4
(b) 9
(c) 3
(d) Cannot be determined
(e) None of these
Ans. (a) Let the unit's digit be y.
Also let y > x.
∴ Number = 10y + x and number obtained by interchanging the digits = 10x + y
∴ 10y + x - 10x - y = 36
⇒ 9y - 9x = 36
⇒ 9(y - x) = 36
⇒ y - x = 4

SBI-PO 2007 (Quantitative Aptitude)

76. The difference between a two digit number and the number obtained by interchanging the position of its digits is  36. What is the difference between the two digits of that number ?
(a) 4
(b) 9
(c) 3
(d) Cannot be determined
(e) None of these
Ans. (a) Let the unit's digit be y.
Also let y > x.
∴ Number = 10y + x and number obtained by interchanging the digits = 10x + y
∴ 10y + x - 10x - y = 36
⇒ 9y - 9x = 36
⇒ 9(y - x) = 36
⇒ y - x = 4

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SBI-PO 2006 (QUANTITATIVE APTITUDE)

 

SBI-PO 2006 (QUANTITATIVE APTITUDE)

Directions (126-130) ; Each of the questions below consists of a question and three statements denoted A, B and C are given below it. You have to study the questions and all the three statement and decide the question can be answered with anyone or two of the statements or all the statements are required to answer the question.

126. How much marks did Arun secure in English?
A. The average marks obtained by Arun in four subjects including English is 60.
B.The total marks obtained by him in English and Mathematics together is 170.
C. The total marki obtained by him in Mathematics and Science together is 180.
(a) All three A, B and C together are necessary.
(b) Only A and B together are necessary.
(c) Only B and C together are necessary.
(d) Only A and C together are necessary.
(d) None of these
Ans.A. Total marks in 4 subjects including English
= 4 × 60 = 240
B. Total marks in English and Maths = 170
C. Total marks in Maths and Science : 180
The question can't be answered because nothing has been said about the marks in the fourth subject.
Also, there are four unknowns but only three equations can be formed with given data.

 

SBI-PO 2006 (QUANTITATIVE APTITUDE)

Directions (126-130) ; Each of the questions below consists of a question and three statements denoted A, B and C are given below it. You have to study the questions and all the three statement and decide the question can be answered with anyone or two of the statements or all the statements are required to answer the question.

126. How much marks did Arun secure in English?
A. The average marks obtained by Arun in four subjects including English is 60.
B.The total marks obtained by him in English and Mathematics together is 170.
C. The total marki obtained by him in Mathematics and Science together is 180.
(a) All three A, B and C together are necessary.
(b) Only A and B together are necessary.
(c) Only B and C together are necessary.
(d) Only A and C together are necessary.
(d) None of these
Ans.A. Total marks in 4 subjects including English
= 4 × 60 = 240
B. Total marks in English and Maths = 170
C. Total marks in Maths and Science : 180
The question can't be answered because nothing has been said about the marks in the fourth subject.
Also, there are four unknowns but only three equations can be formed with given data.

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SBI-PO 2005 (Quantitative Aptitude)

SBI-PO 2005 (Quantitative Aptitude)

QUANTITATIVE APTITUDE

Directions (76-78) What approximate value will come in place of the questions mark (?) in the following equations?

76. 125% of 4875 + 88.005 × 14.995 = ?

(a) 7395

(b) 7490

(c) 7510

(d) 7375

(e) 7415

Ans.(e) ? = 125% of 4875 + 88.005 × 14.995

≈ 125% of 4900 + 88 × 15

≈

125 × 4900      100

+ 1320

≈ 6125 + 1320

≈ 7445 ≈ 7415

SBI-PO 2005 (Quantitative Aptitude)

QUANTITATIVE APTITUDE

Directions (76-78) What approximate value will come in place of the questions mark (?) in the following equations?

76. 125% of 4875 + 88.005 × 14.995 = ?

(a) 7395

(b) 7490

(c) 7510

(d) 7375

(e) 7415

Ans.(e) ? = 125% of 4875 + 88.005 × 14.995

≈ 125% of 4900 + 88 × 15

≈

125 × 4900      100

+ 1320

≈ 6125 + 1320

≈ 7445 ≈ 7415

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