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Number System

Number System
Let R = qs—4. When s=8, R=16. When s=10, R is equal to

21
20
23
22

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

21

Number System
What is the greater of the two numbers whose product is 2560, given that the sum of the two numbers exceeds their difference by 64?

110
100
None of these
90

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the greater and the smaller number be g and s respectively.gs = 2560g + s exceeds g - s by 64 i.e., g + s - (g - s) = 64i.e., 2s = 64 => s = 32.g = 2560/s = 80.

Number System
In how many different ways can the letters of the word CORPORATION be arranged ?

3326400
1326400
2326400
None of these

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

CORPORATION = 11 letters 'O' comes thrice,'R' twice.∴ total no. of ways = 111/3121 = 3326400

Number System
What is the value of ? in the following equations ? 72/? = ?/50

40
60
80
100

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

(?)² = 72 x 50= (6 x 6 x 2) x (5 x 5 x 2)= (6 x 5 x 2)² = (60)²∴ ? = 60

Number System
A certain number when divided by 39 leaves a remainder 20, what is the remainder when the same number is divided by 13?

7
0
5
11

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

39 + 20 = 59/13 = 7 (Remainder)

Number System
How many numbers up to 100 are divisible by 7?

93
14
107
100

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

100/7 = 14 2/7 => 14 Numbers

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