## Percentage For SBI PO : Set -06

1) In an election between two candidates, one got 55% of the total valid votes, 20% of the votes were invalid. If the total number of votes was 7500, the number of valid votes that the other candidate got, was:

a) 2700

b) 2900

c) 3000

d) 3100

e) None of these

a)

20% invalid=1500; valid = 6000

Other candidate= 45%

45% of 6000=2700

2) Two numbers A and B are such that the sum of 5% of A and 4% of B is two-third of the sum of 6% of A and 8% of B. Find the ratio of A:B.

a) 2:3

b) 1:1

c) 3:4

d) 4:3

e) None of these

d)

5% of A+4% of B = 2/3(6% of A +8% of B)

A:B=> 4:3

3) If A=x% of y and B=y% of x, then which of the following is true?

a) A is smaller than B.

b) A is greater than B.

c) Relationship between A and B cannot be determined

d) If x is smaller than y, then A is greater than B.

e) None of these

e)

A=x% of y; B=y% of x

Let x=10; y=20

A=Z; B=Z

Let x=20; y=10

A=Z; B=Z

4) Two students appeared at an examination. One of them secured 9 marks more than the other and his marks was 56% of the sum of their marks. The marks obtained by them are:

a) 39, 30

b) 41, 32

c) 42, 33

d) 43, 34

e) None of these

A = 56%; B= 44%

A:B => 14:11

14x-11x=> 9; x=3

42,33

5) 8 is 4% of a, and 4 is 8% of b. c equals b/a. What is the value of c?

a) 1/32

b) 1/4

c) 1

d) 4

e) None of these

4% of a =8; a=8*100/4 ; a=200

8% of b=4; b=50

C=b/a = 50/200=1/4

6) If b equals 10% of a andc equals 20% of b, then which one of the following equals 30% of c?

a) 0.006% of a

b) 0.00006% of a

c) 0.06% of a

d) 0.6% of a

e) None of these

b=10% of a = 0.1a

C= 20% of b = 0.2b

C=0.2*0.1a

30% of c=0.3c

0.3(0.2*0.1a)

0.006a

0.6% of a

7) Ram’s salary was decreased by 25% and subsequently increased by 25%. He has a net salary reduction of

a) 62.5%

b) 6.25%

c) 0.625%

d) 0.0625%

e) None of these

b)

Let salary be 100

Decrease by 25% => 75

Increase by 25% => 75*125%

93.75

(100-93.75)

6.25

8) A student has to secure 40% marks to pass. He gets 178 marks and failed by 22 marks. The maximum marks are

a) 200

b) 500

c) 800

d) 900

e) None of these

b)

Marks obtained = 178

Failed by 22

Pass mark is 200

Total mark x

40% of x=200

X=500

9) By how much percent is two-third of 90 lesser than four-fifth of 100?

a) 16%

b) 25%

c) 24%

d) 32%

e) None of these

b)

4/5*100-2/3*90 => 20

=>20/80*100=25%

10) 30% of a number when subtracted from 91 gives the number itself. The number is

a) 70

b) 130

c) 63.7

d) 70.7

e) None of these