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Number System

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

14
100
107
93

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

100/7 = 14 2/7 => 14 Numbers

Number System
35 + 15 * 1.5 = ?

57.5
51.5
5.25
75

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Given Exp. = 35 + 15 * 3/2 = 35 + 45/2 = 35 + 22.5 = 57.5

Number System
56.21 +2.36+5.41 —21.4+1.5=?

44.08
34.08
64.08
54.08

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

44.08

Number System
The product of two consecutive odd numbers is 4095 What is the greater number ?

69
65
74
61

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the two consecutive odd numbers be 2x - 1 and 2x + 1.(2x - 1) (2x - 1) = 4095= 4x² - 1 = 4095= 4x² = 4096= x² = 1024∴ x = 32∴ The numbers are 63 and 65.Greater number = 65

Number System
7432 ÷ 32 x ? = 2787

21
12
41
78

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

7432/32 x ? = 2787= ? = 2787 x 32/7432 = 12

Number System
A certain number of two digits is three times the sum of its digits. If 45 be added to it, the digits are reversed. The number is:

22
24
27
30

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

27

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