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Number System

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

2520
2367
2678
2410

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

In BIOLOGY total 7 letters are there but O comes twice.∴ Number of arrangements = 7!/2! = 2520

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 ?

10160
20160
40160
30160

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

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

Number System
The difference between a two-digit number and the number obtained by interchanging the digits is 36. What is the difference of the two digits of the number ?

1
3
2
4

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

(10x + y) - (10y + x) = 36,9(x - y) = 36/9 = 4

Number System
68375 + 72848 - ? = 34346 + 49569

59308
None of these
57308
58308

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 68375 + 72848 - 34346 - 49569 = 141223 - 83915 = 57308

Number System
83250÷?=74×25

38
45
59
21

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

45

Number System
√343 = ?

20
19
21
18

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = √343 = 18

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