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Number System

Number System
If 4 2/3 is subtracted form 10 1/2 and the difference is multiplied by 450, then what is the final answer?

2675
2875
2725
None of these

ANSWER DOWNLOAD EXAMIANS APP

Number System
20% of the total number of students in a school play football. How many students do not play football if the total number of students in the school is 7600 ?

5800
5976
6080
6000

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

20% of 7600 = 1520Therefore, students who do not play football = 7600 - 1520 = 6080

Number System
What is the difference between the local values of 3 in the number 53403?

3003
2997
3030
0

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

3000 – 3 = 2997

Number System
Which number should replace question mark (?) in the following equation ? ?/342 = 38/?

118
112
116
114

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

(?)² = 342 x 38Therefore, ? = √342 x 38 = √38 x 9 x 38 = 38 x 3 = 114

Number System
If the of a two-digit number are interchanged, the number so obtained is greater than the original number by 18. If the sum of the two digits of the number is 14. What is the original number ?

68
66
62
64

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the no. be 10x + y.No. formed by the interchange of digits = 10y + xWe have y - x = 2 .........(i)y + x = 14            .........(ii)Solving (i) and (ii), we get x = 6, and y = 8∴ the no. is 68.

Number System
Two third of three- fifth of one fourth of a number is 24, what is 30% of that number?

69
72
90
42

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

x * 2/3 * 3/5 * 1/4 = 24x = 240240 * 30/100 = 72

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