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Number System

Number System
3251 + 587 + 369 - ? = 3007

1250
1375
1300
1200

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

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

Number System
In how many different ways can the letters of the word CORPORATION be arranged ?

2326400
1326400
None of these
3326400

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

CORPORATION = 11 letters 'O' comes thrice,'R' twice.∴ total no. of ways = 111/3121 = 3326400

Number System
The difference between 72% of a number and 49% of the same number is 575. What is 9% of that number ?

275
225
295
245

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the no. be x.Therefore, 72% of x - 49% of x = 575Therefore, (72 - 49)% of x = 575Therefore, 9% of x = 575/23 x 9 = 225

Number System
The difference between a number and its three-fifth is 50. What is the number?

None of these
125
75
100

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

x - 3/5 x = 50 => 2/5 x = 50x = (50 * 5)/2 = 125.

Number System
The average of five consecutive even numbers A, B, C, D and E is 42. What is the product of B and D ?

3289
1760
4589
2476

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

A + B + C + D + E/5 = 42∴ C = 42,   ∴ B = 40,  ∴ D = 44∴ B x D = 40 x 44 = 1760

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

70
68
66
64

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

∵ 68 x 69 = 4692

MORE MCQ ON Number System

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