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Number System

Number System
If the difference between a number and two-fifths of that number is 45 what is the number ?

75
76
77
78

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number be x ∴ x - 2x/5 = 45∴ x = 75

Number System
Supply the missing figure : 1, 4, 9, 16, 25 .... 49

36
42
16
23

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

36

Number System
If A = 1, B = 3, C = 5 and so on, what do the numbers 3, 9, 7 stand for

BAT
CAT
BED
CAR

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

BED

Number System
What is the remainder when 263251 is divided by 9?

1
3
8
6

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

If the sum of the digits of a number is divisible by 9, the number will be divisible by 9.2 + 6 + 3 + 2 + 5 + 1 = 19The nearest multiple of 9 is 18.19 - 18 = 1.

Number System
Simplify the 121 * 175 + 363 * 275

316600
328100
363000
None of these

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

121 * 175 + 363 * 275 => 121 * 175 + 121 * 3 * 275121 * 175 + 121 * 825= 121 * (175 + 825) = 121000

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?

100
90
110
None of these

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.

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