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Number System

Number System
Complete the series : 11, 12, 17, 18, 23, 24 ...

None of these
14
30
12

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

None of these

Number System
The sum of the present age of a father and a son is 60 years. Five years before, the age of the father was four times that of son. What is the present age of the son ?

21 years
25 years
15 years
18 years

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the father's age be x and son's age yTherefore, x + y = 60   ....................(i)Five years back, (x - 5) = 4 (y - 5)x - 4y = - 15 ......................(2)Solving (1) and (2), x = 45 and y = 15

Number System
Supply the missing figure : 3, 11, 8, 16, 13 .... 18

28
18
21
12

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

21

Number System
Sum of two numbers is 80. Greater number exceeds by 5 from four times of the smaller. Find the numbers?

65, 15
62, 18
64, 16
60, 20

ANSWER DOWNLOAD EXAMIANS APP

Number System
The sum of three consecutive multiples of 3 is 72. What is the largest number?

21
27
36
24

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the numbers be 3x, 3x + 3 and 3x + 6.Then,3x + (3x + 3) + (3x + 6) = 729x = 63x = 7Largest number = 3x + 6 = 27.

Number System
2/11 of 3/7 of 8/13 of 12012 = ?

241
576
449
321

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 2 x 3 x 8 x 12012/11 x 7 x 13 = 576

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