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Number System

Number System
6.4 x 8.5 x 25/3.2 x 12.5 = ?

3.4
2.3
5.6
4.5

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 6.4 x 8.5 x 2.5/3.2 x 12.5 = 3.4

Number System
If the product of two successive positive integers is 4692, what is the smaller number ?

70
68
64
66

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

∵ 68 x 69 = 4692

Number System
The average age of seven boys sitting in a row facing North is 26 years. If the average age of first three boys is 19 years and the average age of last three boys is 32 years, what is the age of the b

28 years
29 years
30 years
31 years

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Age of the fourth boy = (26 x 7 - 3 x 19 - 3 x 32) years = (182 - 57 - 96) years = 29 years

Number System
A shopkeeper purchased 200 bulbs for Rs. 10 each. However, 5 bulbs were fused and had to be thrown away. The remaining were sold at Rs. 12 each. What will be percentage profit?

17
33
21
14

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

12

Number System
Three numbers are in ratio of 3: 4 :5. If the sum of first & third numbers is more than second number by 52, which will be largest number?

34
78
23
65

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

65

Number System
How many figures are required for numbering the pages of a book containing 1000 pages?

2883
3892
2893
6489

ANSWER DOWNLOAD EXAMIANS APP
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