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Number System

Number System
(12.04 x 7.5 + 0.8 x 45) ÷ 3 = ?

54.7
42.1
45
42.6

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

(90.3 + 36) ÷ 3 = 126.3/3 = 42.1

Number System
What value should come in place of ? in the given number series ? 15, 51, 162, 498, 1509, ?

4545
3434
5656
7878

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

15, (15 + 2) x 3 = 51,(51 + 3) x 3 = 162, (162 + 4) x 3 = 498, (498 + 5) x 3 = 1509(1509 + 6) x 3 = 4545

Number System
Twenty times a positive integer is less than its square by 96. What is the integer?

30
20
Cannot be determined
24

ANSWER DOWNLOAD EXAMIANS APP

Number System
The population of a town increases by 15% in the first year and decreases by 25% in the second year. If its current population is 168480 then what will be its population after two years ?

145914
145214
145714
145314

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Population of the town= 168480 x 115/100 x 75/100= 145314

Number System
What number should replace both the question marks (?) in the following question ?

82
83
85
84

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

84

Number System
What is the difference between the local value of 7 and 5 in the number 2574?

430
403
570
413

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

500 – 70 = 430

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