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Number System

Number System
If a number is subtracted from its square we get 272. Find the number?

17
24
14
22

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

x2 – x = 272 => x =17

Number System
5525 ÷ 17 = √?

99225
112225
93025
105625

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

√? = 5525/17 = 325∴ ? = (325)² = 105625

Number System
Find the greatest number which leaves the same remainder when it divides 25, 57 and 105.

8
16
18
12

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

105 - 57 = 4857 - 25 = 32105 - 25 = 80The H.C.F of 32, 48 and 80 is 16.

Number System
A laborer is engaged for 30 days on the condition that he receives Rs.25 for each day he works and is fined Rs.7.50 for each day is absent. He gets Rs.425 in all. For how many days was he absent?

6
10
9
8

ANSWER DOWNLOAD EXAMIANS APP

Number System
If one-seventh of a number is 55 then 40% of that number = ?

147
171
154
163

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the no. be x ,             Therefore, x/7 = 55Therefore, x = 55 x 7 = 385Therefore, 49% of 385 = 154

Number System
3251 + 587 + 369 - ? = 3007

1250
1300
1375
1200

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let 4207 - x = 3007 Then, x = 4207 - 3007 = 1200

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