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Number System

Number System
On dividing number by 357, we get 39 as remainder. On dividing the same number by 17, what will be the remainder?

3
11
0
5

ANSWER DOWNLOAD EXAMIANS APP

Number System
If 5/7 of a number is 145, what is 180% of that number ?

345.4
355.4
375.4
365.4

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number be x.∴ x x 5/7 = 145∴ x = 145 x 7/5 = 203Now, 203 x 180/100 = 365.4

Number System
Find the smallest number which when divided by 13 and 16 leaves respective remainders of 2 and 5.

187
197
219
207

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let 'N' is the smallest number which divided by 13 and 16 leaves respective remainders of 2 and 5.Required number = (LCM of 13 and 16) - (common difference of divisors and remainders) = (208) - (11) = 197.

Number System
65% of 320+?=686

479
478
481
480

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

65% of 320+?=686 208+?=686?=686-208?=478

Number System
What is the average of the following set of numbers ? 173, 192, 198, 204, 211, 223, 227

234
222
204
210

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Avg  = 173 + 192 + 198 + 204 + 211 + 223 + 227/7        = 1428/7        = 204

Number System
The sum of the digits of a two-digit number is 12, and the difference between the number and the number obtained by interchanging the two digits of the number is 18. Find the number.

12.5
25
75
50

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number be 10x + y.∴ x + y = 12    ...........(i)10x + y - (10x + x) = 18or 10x + y - 10y - x = 18or 9x - 9y = 18∴ x - y = 2From (i) and (ii), x = 7, y = 5∴ Number = 75

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