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Number System

Number System
On dividing number by 5, we get 3 as remainder. What will be the remainder when the square of this number is divided by 5?

2
4
0
1

ANSWER DOWNLOAD EXAMIANS APP

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 ?

25 years
18 years
21 years
15 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
If the average of two numbers is 88.5 and one number is 5.5 less than the average. Find out the next number.

91
97
86
94

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

94

Number System
√360 - 225 x 2 + 379 = ?

20
19
18
17

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = √360 - 225 x 2 + 379 = √360 - 450 + 379 = √289= 17

Number System
The sum of five consecutive numbers is 190. What is the sum of the largest and the smallest number ?

73
76
75
74

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

x + x + 1 + x + 2 + x + 3 + x + 4= 190= 5x + 10 = 190= 5x = 190 - 10 = 180= x = 180/5 = 36The largest number = 36 + 4 = 40∴ Required sum = 36 + 40 = 76

Number System
4500 * ? = 3375

2/5
3/4
1/4
3/5

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

4500 * x = 3375= x = 3375/4500 = 3/4

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