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Number System

Number System
217 * 217 + 183 * 183 = ?

81268
80578
80698
79698

ANSWER DOWNLOAD EXAMIANS APP

Number System
If (182)² is added to the square of a number, the answer so obtained is 47765. What is the number ?

111
131
101
121

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the no. be xTherefore x² + (182)² = 47765Therefore x² = 47765 - (182)2                        = 47765 - 33124Therefore x² = 14641,                Therefore x = 121

Number System
If the product of two successive positive integers is 4692, what is the smaller number ?

68
64
66
70

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

∵ 68 x 69 = 4692

Number System
I. 3x2-14x + 8 = 0 II. 2y2 - 1 7 y + 36 = 0

if x > y
if x >= y
if x < y
if x <= y

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

l. 3x2 - 12x - 2x + 8 = 0or 3x(x - 4) -2 (x -4) = 0∴ x = 4, 2/3ll. 2y2 - 8y - 9y + 36 = 0or 2y (y - 4) -9 (y - 4) = 0or (2y - 9) (y - 4) = 0∴ y = 4, 9/2

Number System
(4 86%of 6500) ÷ 36 =?

977.5
877.5
777.5
677.5

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

877.5

Number System
Simplify the 121 * 175 + 363 * 275

316600
None of these
328100
363000

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

121 * 175 + 363 * 275 => 121 * 175 + 121 * 3 * 275121 * 175 + 121 * 825= 121 * (175 + 825) = 121000

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