Numbers Test 23

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Numbers Test 23

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Question 1/30
1 / -0

Directions For Questions

7/2 m

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There are 5 trees in a row and distance between any two adjacent trees is 7/10 m. What is the distance between the frist tree and the last tree ?

Correct

Wrong

Skipped
A
14/5 m

Correct

Wrong

Skipped
B
7/2 m

Correct

Wrong

Skipped
C
7/50 m

Correct

Wrong

Skipped
D
7/5 m

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Solutions
7/2 m
Question 2/30
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Directions For Questions

7

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How many pairs of positive integers m,n satisfy 1/m 1/n=1/12, where n is integer less than 60 ?

Correct

Wrong

Skipped
A
6

Correct

Wrong

Skipped
B
4

Correct

Wrong

Skipped
C
7

Correct

Wrong

Skipped
D
3

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Solutions
7
Question 3/30
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Directions For Questions

3, 37 and 111

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A and B are playing mathematical puzzles. A asks B "which whole numbers, greater than one, can divide all the nine three digit numbers 111,222,333,444,555,666, 777,888 and 999?" B immediately gave the desired answer. It was ?

Correct

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A
3, 9 and 37

Correct

Wrong

Skipped
B
9, 37 and 111

Correct

Wrong

Skipped
C
3, 37 and 111

Correct

Wrong

Skipped
D
3, 37 and 119

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Solutions
3, 37 and 111
Question 4/30
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Directions For Questions

17

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The H.C.F of 204, 1190 and 1445 is:

Correct

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Skipped
A
12

Correct

Wrong

Skipped
B
17

Correct

Wrong

Skipped
C
18

Correct

Wrong

Skipped
D
19

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Solutions
17
Question 5/30
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Directions For Questions

218

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3,10,29,66,127,(?)

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Skipped
A
218

Correct

Wrong

Skipped
B
216

Correct

Wrong

Skipped
C
185

Correct

Wrong

Skipped
D
164

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Solutions
218
Question 6/30
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Directions For Questions

336

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23. 24, 60, 120, 210, (? ).

Correct

Wrong

Skipped
A
330

Correct

Wrong

Skipped
B
333

Correct

Wrong

Skipped
C
336

Correct

Wrong

Skipped
D
340

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Solutions
336
Question 7/30
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Directions For Questions

98

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The difference and the product of two numbers are 32 and 2145 respectively. Their sum is?

Correct

Wrong

Skipped
A
87

Correct

Wrong

Skipped
B
78

Correct

Wrong

Skipped
C
98

Correct

Wrong

Skipped
D
89

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Solutions
98
Question 8/30
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Directions For Questions

12

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Two prime numbers A,B(A23, then which of the following numbers would always divide Aand B?

Correct

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Skipped
A
12

Correct

Wrong

Skipped
B
24

Correct

Wrong

Skipped
C
8

Correct

Wrong

Skipped
D
None of these

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Solutions
12
Question 9/30
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Directions For Questions

946

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How many ordered pairs of integer (x,y) are there such that their product is a positive integer less than 100.

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Skipped
A
946

Correct

Wrong

Skipped
B
1090

Correct

Wrong

Skipped
C
636

Correct

Wrong

Skipped
D
546

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Solutions
946
Question 10/30
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Directions For Questions

9

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What is the unit digit in 4137^754 ?

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Wrong

Skipped
A
1

Correct

Wrong

Skipped
B
3

Correct

Wrong

Skipped
C
7

Correct

Wrong

Skipped
D
9

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Solutions
9
Question 11/30
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Directions For Questions

781

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The integer 1,2,.......40 are written on a blackboard the following operation is then repeated 39 times. in each repetition, any two numbers, say a and b, currently on the blackboard are erased and a new number a b-1 is written. what will be the number left on the board at the end ?

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Skipped
A
820

Correct

Wrong

Skipped
B
821

Correct

Wrong

Skipped
C
781

Correct

Wrong

Skipped
D
819

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Solutions
781
Question 12/30
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Directions For Questions

101

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A watch ticks 90 times in 95 seconds and another watch ticks 315 times in 323 seconds. If both the watches are started together, how many times will they tick together in first hour ?

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Wrong

Skipped
A
102

Correct

Wrong

Skipped
B
101

Correct

Wrong

Skipped
C
103

Correct

Wrong

Skipped
D
100

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Solutions
101
Question 13/30
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Directions For Questions

3

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The numbers 1 to 29 are written side by side as follows 1234567891011......2829. If the number is divided by 9, then what is the remainder?

Correct

Wrong

Skipped
A
1

Correct

Wrong

Skipped
B
2

Correct

Wrong

Skipped
C
3

Correct

Wrong

Skipped
D
0

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Solutions
3
Question 14/30
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Directions For Questions

60

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How many 5 digit numbers can we form using 1,2,3,4 and 5 such that units digit is always greater than the hundreds digit?

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Skipped
A
48

Correct

Wrong

Skipped
B
36

Correct

Wrong

Skipped
C
60

Correct

Wrong

Skipped
D
72

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Solutions
60
Question 15/30
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Directions For Questions

162.5

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95, 115.5, 138, ...., 189.

Correct

Wrong

Skipped
A
162.8

Correct

Wrong

Skipped
B
162.9

Correct

Wrong

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C
160

Correct

Wrong

Skipped
D
162.5

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Solutions
162.5
Question 16/30
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Directions For Questions

2 or 6

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If x and y are the two digits of the number 653xy such that this number is divisible by 80, then x y = ?

Correct

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Skipped
A
8

Correct

Wrong

Skipped
B
4 or 8

Correct

Wrong

Skipped
C
4

Correct

Wrong

Skipped
D
2 or 6

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Solutions
2 or 6
Question 17/30
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Directions For Questions

h = n!

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If (a, n)! is defined as product of n consecutive numbers starting from a, where a and n are both natural numbers, and if H is the HCF of (a, n)! and n!, then what can be said about H?

Correct

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Skipped
A
h = a!

Correct

Wrong

Skipped
B
h ? n!

Correct

Wrong

Skipped
C
h = n!

Correct

Wrong

Skipped
D
h ? a * n

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Solutions
h = n!
Question 18/30
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Directions For Questions

20%

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in a rupee, but he sells at the rate of 5 oranges in a rupee. His loss is?

Correct

Wrong

Skipped
A
100%

Correct

Wrong

Skipped
B
50%

Correct

Wrong

Skipped
C
25%

Correct

Wrong

Skipped
D
20%

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Solutions
20%
Question 19/30
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Directions For Questions

2:1

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When 75% of a two-digit number is added to it, the digits of the number are reversed. Find the ratio of the unit's digit to the ten's digit in the original number.

Correct

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Skipped
A
2:1

Correct

Wrong

Skipped
B
2:3

Correct

Wrong

Skipped
C
1:2

Correct

Wrong

Skipped
D
1:4

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Solutions
2:1
Question 20/30
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Directions For Questions

106
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The digits of a three -digit number A are written in the reverse order to form another three-digit number B. If B>A and B-A is perfectly divisible by 7, then which of the following is necessarily true?

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Skipped
A
100

Correct

Wrong

Skipped
B
106

Correct

Wrong

Skipped
C
112

Correct

Wrong

Skipped
D
118

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Solutions
106