The number nearest to 10000 which is exactly divisible by each of 3, 4, 5, 6, 7and 8 is

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The number nearest to 10000 which is exactly divisible by each of 3, 4, 5, 6, 7 and 8 is

A9240

B10080

C9996

D100000

rahul ? Jan 11 '2020 at 16:53

Correct answer is: 10080

Explanation:

LCM of (3, 4, 5, 6, 7, 8) = 3 × 4 × 5 × 7 × 2 = 840
⇒ divided 10000 by LCM

\(=> \frac{10000}{840}\) , we get remainder = 760

Now two possibilities are
= 10000 - 760 = 9240
or 10000 + (840 - 760) = 10080
So, nearest number is = 10080

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Of the three numbers, the second is twice the first and it is also thrice the third.If the average of three numbers is 44, the difference of the first number and thethird number is

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Of the three numbers, the second is twice the first and it is also thrice the third. If the average of three numbers is 44, the difference of the first number and the third number is

A24

B18

C12

D6

raju ? Jan 11 '2020 at 16:45

Correct answer is: 12

Explanation:

Let third number be x.
Then, second number = 3x

First number \(=\Large \frac{3x}{2}\) 

\(\Large x + 3x + \frac{3x}{2} = \left(44 \times 3\right)\)

\(\Large \frac{11x}{2} = 44 \times 3\)

\(\Large x = 24\)

the difference of the first number and the third number is

\(=\Large \frac{3x}{2} - x\)

\(= \frac{3 \times 24}{2}-24\)

\(=36 - 24\)

\(= 12\)

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If ★ means adding 6 times the second number to the first number, then (1★2)★3 equals

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If ★ means adding 6 times the second number to the first number, then (1★2)★3 equals

A121

B31

C93

D91

roshan ? Jan 11 '2020 at 16:32

Correct answer is: 31

Explanation:

1 + 12 = 13
13 + 18 = 31

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if 32 = 2^x, then x = ?

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if 32 = 2^x, then x = ?

A15

B4

C5

D8

Revathi ? Apr 19 '2019 at 12:29

Soln: 2^x = 32

Here, we can write 32 as 2 power 5.

Because, 2×2×2×2×2 = 32 2^x = 2^5

Now, the base are equal. So, the powers also must be equal.

Therefore, we can write that, x = 5.

Thank You

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The number which is neither prime nor composite is

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The number which is neither prime nor composite is

A0

B1

C3

D2

taskbot ? Jan 5 '2019 at 19:36

Answer: B[1]

Explanation:

A prime number has only two factors: 1 and itself.

A composite number has more than two factors. The number 1 is neither prime nor composite.

The prime numbers between 2 and 31 are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29 and 31

since each of these numbers has only two factors, itself and 1.

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