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Number System

Number System
(4 86%of 6500) ÷ 36 =?

877.5
977.5
677.5
777.5

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

877.5

Number System
(12)² - (4.4)² - (0.04)² = ?

129.6384
125.6384
124.6384
131.6384

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

(12)² - (4.4)² - (0.04)²= 144 - 19.36 - 0.0016= 124.64 - 0.0016= 124.6384

Number System
Ratio between two numbers is 3: 4 and their sum is 420. Find the smaller number?

140
180
240
160

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 ?

131
111
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
What should come in place of the question mark (?) in the following number series ? 888 888 444 148 ? 7.4

29
35
33
37

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

888 ÷ 1 = 888888 ÷ 2 = 444444 ÷ 3 = 148148 ÷ 4 = 3737 ÷ 5 = 7.4

Number System
In an examination, 68% of the total examinees passed. If the number of failures is 248, the total number of examinees is

775
750
725
640

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Failed students are 32% which is 248.∴ Total = 24800/32 = 775

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