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Number System

Number System
How many numbers up to 100 and 300 are divisible by 11?

22
18
21
20

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

(300 – 100)/11 = 200/11 = 18 2/1118 Numbers

Number System
17580 x 1.8 - 13720 x 2.1 = ? x 2.4

1120
1160
1140
1180

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

2.4 x ? = 31644 - 28812 = 2832∴ ? = 2832/2.4= 1180

Number System
The average of five consecutive even numbers A, B, C, D and E is 54. What is the product of'B' and 'E' ?

3016
2871
4098
1456

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Because, The even numbers are consecutive and their average is 54.∴ The number C will be 54.∴ A = 50, B = 52, D = 56, E = 58B x E = 52 x 58 = 3016

Number System
(2560 x 1.4) +(7400 x 0.6) =?

8024
6543
9160
7234

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

8024

Number System
Of an amount, 20% of 25% of 30% is Rs 75. Then what is the original amount ?

Rs. 3000
Rs. 2000
Rs. 5000
Rs. 4000

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the amount be x.∴ X x 20/100 x 25/100 x 30/100 = 75∴ X = 75 x 5 x 4 x 10/3  = 5000

Number System
How many numbers between 300 and 800 can be by using digits 2, 4, 5, 6 and 0 ?

48
52
56
36

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

∴ Reqd . numbers = 3 x 4P2 = 3 x 12 = 36

MORE MCQ ON Number System

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