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Number System

Number System
In how many different ways can the letters of word "SENTENCE" be arranged ?

3360
6460
2360
3260

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Number of ways = 8!/3! 2! = 40320/12 = 3360

Number System
If the following fractions 7/6, 6/7, 5/3, 8/13 and 6/5 are arranged in descending order, which will be the last in the series?

9/13
7/13
8/13
6/13

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

7/6 = 1.166, 6/7 = 0.857,5/3 = 1.66,8/13 = 0.615,6/5 = 1.2Therefore, 5/3 > 6/5 > 7/6 > 6/7 > 8/13

Number System
On dividing number by 56, we get 29 as remainder. On dividing the same number by 8, what will be the remainder?

7
6
4
5

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let x be the number and y be the quotient. Then, x = 357 * y + 39= (17 * 21 * y) + (17 * 2) + 5= 17 * (21y + 2) + 5.Required remainder = 5.

Number System
486+32×25—59=?

582
528
567
596

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

528

Number System
{(742)² ÷ 36} ÷ 2 = ?

421.5
420.5
423.5
422.5

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = (174 x 174/36) ÷ 2 = 841/2 = 420.5

Number System
36% of 850+? % of 592 = 750

50
75
12.5
25

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

75

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