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Number System

Number System
In a division sum, the quotient is 120, the divisor 456 and the remainder 333, find the dividend?

56053
5553
55053
50553

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

120 * 456 + 333 = 55053

Number System
68375 + 72848 - ? = 34346 + 49569

None of these
57308
58308
59308

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 68375 + 72848 - 34346 - 49569 = 141223 - 83915 = 57308

Number System
(164 x 175) x ? = 258300

11
9
5
2

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 258300 / 164 x 175 = 9

Number System
The sum of a number and its reciprocal is one-eighth of 34. What is the product of the number and its square root?

27
32
None of these
8

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number be x. Then,x + 1/x = 34/8 8x2 - 34x + 8 = 0 4x2 - 17x + 4 = 0 (4x - 1)(x - 4) = 0 x = 4required number = 4 * √4 = 4 * 2 = 8.

Number System
The digit in unit's place of a three digit number is thrice the digit in ten's place & the digit in hundred's place is two-third of the digit in ten's place. If the sum of three digits of number is 14

211
221
239
215

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the ten's digit be x.∴ Unit's digit = 3xHundered's digit = 2x/3∴ x + 3x + 2x/3 = 14= 3x + 9x + 2x = 14 x 3= 14x = 14 x 3= x = 3∴ Number = 239

Number System
The sum of two numbers is 25 and their difference is 13. Find their product.

315
114
325
104

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the numbers be x and y. Then x + y = 25 and x - y = 13.x = 19; y = 6xy = 19 * 6 = 114

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