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Instructions

<p “=””>Study the sets of numbers given below and answer the questions, which follow :
972 682 189 298 751

Question 1:Â If one is added to the smaller odd number and one is subtracted from the higher odd number, which of the following will be obtained if the second digit of the higher number is subtracted from the second digit of the lower number so formed?

a)Â 6

b)Â 5

c)Â 4

d)Â 3

e)Â 2

Solution:

SetÂ :Â 972 , 682 , 189 , 298 , 751

Smaller odd number = 189 + 1 = 190

Higher odd number = 751 – 1 = 750

=> Difference = 9 – 5 = 4

=> Ans – (C)

Question 2:Â If in each number, second and the third digits are interchanged, what will be the sum of first digit of the smallest number and last digit of highest number ?

a)Â 7

b)Â 6

c)Â 9

d)Â 8

e)Â None of these

Solution:

SetÂ :Â 972 , 682 , 189 , 298 , 751

If 2nd and 3rd digits are interchanged,

SetÂ : 927 , 628 , 198 , 289 , 715

Smallest number = 198

Highest number = 927

=> Sum = 1 + 7 = 8

=> Ans – (D)

Question 3:Â If in each number, all the three digits are arranged in descending order, which of the following will be the third highest number?

a)Â 972

b)Â 682

c)Â 189

d)Â 298

e)Â 751

Solution:

SetÂ :Â 972 , 682 , 189 , 298 , 751

If all digits are in descending order,

SetÂ : 972 , 862 , 981 , 982 , 751

$\therefore$ 3rd highest number = 972

=> Ans – (A)

Question 4:Â If in each number, first and the last digits are interchanged, which of the following will be the third highest number ?

a)Â 972

b)Â 682

c)Â 189

d)Â 298

e)Â 751

Solution:

SetÂ :Â 972 , 682 , 189 , 298 , 751

If first and last digits are interchanged,

SetÂ : 279 , 286 , 981 , 892 , 157

$\therefore$ 3rd highest number = 286 $\equiv$ 682

=> Ans – (B)

Question 5:Â If one is added to the lowest number and two is added to the highest number, what will be the difference between the second digit of the smallest number and third digit of the highest number ?

a)Â 5

b)Â 7

c)Â 9

d)Â 8

e)Â None of these

Solution:

SetÂ :Â 972 , 682 , 189 , 298 , 751

Lowest number = 189 + 1 = 190

Highest number = 972 + 2 = 974

=> Difference = 9 – 4 = 5

=> Ans – (A)

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Instructions

<p “=””>Study the sets of numbers given, below and answer the questions, which follow:
489 541 654 953 783

Question 6:Â If in each number, the first and the last digits are interchanged, which of the following will be the second highest number?

a)Â 489

b)Â 541

c)Â 654

d)Â 953

e)Â 783

Solution:

Numbers = 489 , 541 , 654 , 953 , 783

IfÂ the first and the last digits are interchanged,

=> New set = 984 , 145 , 456 , 359 , 387

Second highest number = 456 $\equiv$ 654

=> Ans – (C)

Question 7:Â Which of the following numbers will be obtained if the first digit of lowest number is subtracted from the second digit of highest number after adding one to each of the numbers?

a)Â 1

b)Â 2

c)Â 3

d)Â 4

e)Â 5

Solution:

Numbers =Â 489 , 541 , 654 , 953 , 783

After adding 1 to each of the numbers,

=> New numbers = 490 , 542 , 655 , 954 , 784

1st digit of lowest number = 490

2nd digit of highest numbers = 954

$\therefore$ Difference = 5 – 4 = 1

=> Ans – (A)

Question 8:Â If in each number the first and the second digits are interchanged, which will be the third highest number?

a)Â 489

b)Â 541

c)Â 654

d)Â 953

e)Â 783

Solution:

Numbers =Â 489 , 541 , 654 , 953 , 783

IfÂ the first and the second digits are interchanged,

=> New numbers = 849 , 451 , 564 , 593 , 873

3rd highest number = 593 $\equiv$ 953

=> Ans – (D)

Question 9:Â If five is subtracted from each of the numbers, which of the following numbers will be the difference between the second digit of second highest number and the second digit of the highest number?

a)Â Zero

b)Â 3

c)Â 1

d)Â 4

e)Â 2

Solution:

Numbers =Â 489 , 541 , 654 , 953 , 783

If five is subtracted from each of the numbers,

=> New numbers = 484 , 536 , 649 , 948 , 778

2nd digit of second highest number = 778

2nd digit of highest number = 948

$\therefore$ Difference = 7 – 4 = 3

=> Ans – (B)

Question 10:Â If in each number, all the three digits are arranged in ascending order, which of the following will be the lowest number?

a)Â 489

b)Â 541

c)Â 654

d)Â 953

e)Â 783

Lowest number = 145 $\equiv$ 541