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Number System

Number System
ind the number, difference between number and its 3/5 is 50

120
123
124
125

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number = x,Then, x-(3/5)x = 50,=> (2/5)x = 50 => 2x = 50*5,=> x = 125

Number System
The sum and the product of two numbers are 25 and 144 respectively, the difference of the number is?

5
11
3
7

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

x + y = 25xy = 144(x- y)2 = (x + y)2 – 4xy(x- y)2 = 625 – 576 => (x – y) = 7

Number System
What value should come in place of ? in the given number series ? 15, 51, 162, 498, 1509, ?

5656
3434
7878
4545

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

15, (15 + 2) x 3 = 51,(51 + 3) x 3 = 162, (162 + 4) x 3 = 498, (498 + 5) x 3 = 1509(1509 + 6) x 3 = 4545

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 ?

22
18
24
28

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
Find the nearest to 25268 which is exactly divisible by 467?

25308
25208
25228
25218

ANSWER DOWNLOAD EXAMIANS APP

Number System
Thrice the square of a natural number decreased by 4 times the number is equal to 50 more than the number. The number is:

5
4
10
6

ANSWER DOWNLOAD EXAMIANS APP
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