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Number System

Number System
Which one of the following is the sum of the numbers 1, 3, 5, 7, 9…. up to nth number?

N2
N(N + 1)
N(N + 1)/2
N2 + 1

ANSWER DOWNLOAD EXAMIANS APP

Number System
[(18.6 x 4.5) + (7.8 ÷ 0.24)] ÷ 3.2 = ?

46.3125
25.3125
36.3125
26.3125

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 83.7 + 32.5/3.2 = 116.2/3.2 = 36.3125

Number System
Which one of the following represents the sum of the first n even numbers?

N(N + 1)
N(N – 1)
N2
N2+ 1

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

N (N + 1)

Number System
Find the least number with which 16200 should be multiplied, to make it a perfect cube.

48
36
360
45

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Number System
What is the sum of all the numbers between 300 and 1000 which are divisible by 179?

2527
2607
2517
2506

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

358/179 ….. 895/179179(2 + 3 + 4 + 5) => 2506

Number System
How many numbers up to 100 are divisible by 7?

93
107
14
100

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

100/7 = 14 2/7 => 14 Numbers

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