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Number System

Number System
If one-seventh of a number is 55 then 40% of that number = ?

171
147
163
154

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the no. be x ,             Therefore, x/7 = 55Therefore, x = 55 x 7 = 385Therefore, 49% of 385 = 154

Number System
A certain number when divided by 45 leaves a remainder 31, what is the remainder if the same number be divided by 15?

11
1
13
9

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

45 + 31 = 76/15 = 1 (Remainder)

Number System
?125÷5x ?=6265

153
124
1452
1253

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

1253

Number System
In a two-digit number, the digit in unit's place is two more than three times the digit in ten's place. If the sum of the two digits is 10, what is the number ?

24
18
28
22

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number be 10x + y.∴ y = 3x + 2 .......(i)And, x + y = 10 ......(ii)From (i) and (ii), x = 2, y = 8∴ Number = 28

Number System
If (74)² is added to the square of a number the answer so obtained is 7780. What is the number ?

50
47
48
49

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number be x.or, x² + (74)² = 7780or, x² = 7780 - 5476 = 2304∴ x = 48

Number System
Find out the smallest possible number which will be divisible by 1122 as well as 153.

4366
3366
2366
1366

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

3366

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