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Number System

Number System
What should come in the place of question mark (?) in the number series given below?

158
157
159
160

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

160

Number System
480% of 350 + 620% of 275 = ?

2385
3385
5385
4385

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 480 x 350/100 + 620 x 275/100= 1680 + 1705 = 3385

Number System
Thrice the square of a natural number decreased by 4 times the number is equal to 50 more than the number. The number is:

5
6
4
10

ANSWER DOWNLOAD EXAMIANS APP

Number System
How many words can be made using the letters of the word "BHAG WADGITA" if all the vowels come together and all the consonants come together ?

30160
40160
10160
20160

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

No. of words = l2  l4  l7  / l3  l2  = 20160

Number System
What is the sum of 1 + 2 + 3+ ... + 27 ?

378
343
396
382

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Sum = 27 x (27 + 1)/2= 27 x 28/2= 27 x 14= 378

Number System
The product of two consecutive odd numbers is 6723. Find is the greater number.

83
80
77
85

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the first odd number be x.Then, the other odd number would be x + 2.∴ x(x+2) = 6723= x2 + 2x = 6723= x2 + 2x = 6723= x2 + 2x - 6723 = 0= x2 + 83 - 81 x - 6723 = 0= x(x+83) - 81 (x + 83) = 0= (x + 83) (x - 81) = 0= (x + 83) (x - 81) = 0= x - 81 = 0∴ x = 81Hence, greater number = x + 2 = 81 + 2 = 83

MORE MCQ ON Number System

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