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If sqrt(18xx14xxx)=84 , then x equals (a...

If `sqrt(18xx14xxx)=84` , then `x` equals (a) 22 (b) 24 (c) 28 (d) 32

A

22

B

24

C

28

D

32

Text Solution

Verified by Experts

The correct Answer is:
3
Given , `sqrt(18xx14xx x)=84`
On squaring both sides , we get
`rArr18xx14xx x=(84)^(2)=7056`
`rArrx=(7056)/(18xx14)=28`
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Knowledge Check

  • If sqrt(18xx14xx x)=168 , then x is equal to

    A
    113
    B
    112
    C
    115
    D
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  • ?=sqrt(18xx32+11xx5+9xx5)

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    26
    B
    24
    C
    28
    D
    27

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