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Number System

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

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

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

“(5/2) + “(1/2)

Number System
If the numerator of a fraction is decreased by 12.5% and the denominator is increased by 180% the resultant fraction is 1/2. What is the original fraction ?

7/5
8/5
3/5
1/5

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the original fraction be x/y.∴ x x 87.5/100/y x 280/100 = 1/2or 87.5x/280y = 1/2∴ 175x = 280y∴ x/y = 280/175        = 8/5

Number System
Find the least number which when divided by 35 and 11 leaves a remainder of 1 in each case.

388
391
384
386

ANSWER DOWNLOAD EXAMIANS APP

Number System
8988 / 8 / 4 = ?

280.875
561.75
4494
2247

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

8988 * 1/8 * 1/4 = 2247/8 = 280.875

Number System
One half of a two digit number exceeds its one third by 6. What is the sum of the digits of the number?

5
3
7
9

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

x/2 – x/3 = 6=> x =63 + 6 = 9

Number System
(4.6 x 2.8 x 5.5) - (3.2 x 4.5 x 2.8) = ?

29.81
27.54
30.52
28.56

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = (4.6 x 2.8 x 5.5) - (3.2 x 4.5 x 2.8)   = 70.84 - 40.32   = 30.52

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