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Number System

Number System
Find the least number which when divided by 35 and 11 leaves a remainder of 1 in each case.

386
384
391
388

ANSWER DOWNLOAD EXAMIANS APP

Number System
486+32×25—59=?

567
596
528
582

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

528

Number System
480% of 350 + 620% of 275 = ?

3385
2385
4385
5385

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 480 x 350/100 + 620 x 275/100= 1680 + 1705 = 3385

Number System
The difference between 8% of a number and 3% of the same number is 39. What is 2.8% of that number ?

21.84
25.84
27.84
24.84

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number be x.∴ x(8 - 3)% = 39x = 3900/5 = 780∴ 2.8% of 780= 780 x 2.8/100 = 21.84

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
121
101

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
The product of two consecutive odd numbers is 6723. Find is the greater number.

80
83
85
77

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the first odd number be x.Then, the other odd number would be x + 2.∴ x(x+2) = 6723= x2 + 2x = 6723= x2 + 2x = 6723= x2 + 2x - 6723 = 0= x2 + 83 - 81 x - 6723 = 0= x(x+83) - 81 (x + 83) = 0= (x + 83) (x - 81) = 0= (x + 83) (x - 81) = 0= x - 81 = 0∴ x = 81Hence, greater number = x + 2 = 81 + 2 = 83

MORE MCQ ON Number System

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