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Number System

Number System
75% of 250 - ?% of 380 = 54.5

35
31
33
39

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

250 x 75/100 - 380 x ?/100 = 54.5= 250 x 75 - 380 x ?= 54.5 x 100= 18750 - 380 x ?= 5450= 380 x? = 18750 - 5450= 13300= ? = 13300/380 = 35

Number System
3√103823 = ?

41
44
47
52

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 3√103823 = 3√47 x 47 x 47 = 47

Number System
2536+4851—?=3450+313

6784
4567
5243
3624

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

3624

Number System
(95.6x 910.3) ÷ 92.56256 = 9?

12.24
13.34
15.54
14.44

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

13.34

Number System
Find the number of factors of 300 excluding 1 and itself.

15
18
14
16

ANSWER DOWNLOAD EXAMIANS APP

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

80
85
83
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

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