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Number System

Number System
If the difference between a number and its 2/5 is 240, find the number.

480
360
400
440

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the no. be x Therefore x - 2x/5 = 240,        Therefore, 3x/5 = 240Therefore, x = 240x5/3 = 400

Number System
On converting the following base-2 numeral in base ten, 1101101, we get

106
107
108
109

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

109

Number System
16.23 x 12.9 + 17.32 = ?

236.687
246.687
226.687
None of these

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 16.23 x 12.9 + 17.32= 209.367 + 17.32= 226.687

Number System
On dividing number by 5, we get 3 as remainder. What will be the remainder when the square of this number is divided by 5?

4
0
2
1

ANSWER DOWNLOAD EXAMIANS APP

Number System
If the L.C.M of two numbers is 750 and their product is 18750, find the H.C.F of the numbers.

50
25
30
125

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

H.C.F = (Product of the numbers) / (Their L.C.M) = 18750/750 = 25.

Number System
The square root of 3 + “5 is :

“5 /2 - 1/”2
“(5/2) + “(1/2)
“3 /2 - 1/”2
“3 /2 + 1/”2

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

“(5/2) + “(1/2)

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