Question

how to find the missing number if 6:222::7:?

Answer 1

Answer:

6:222::7:259

Step-by-step explanation:

$Let \: 6:222::7:x$

$We \: know \: that,\\If \: a:b::c:d \: then \: ad = bc$

$Here, \\6x = 222\times 7$

$\implies x = \frac{222\times 7}{6}\\=259$

Therefore,

6:222::7:259

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Answer 2

Answer:

The ‘missing number’ of the given series is 350.

Given:  

The series 6 : 222 :: 7 : X To

Find:

The ‘missing number’ of given series X.

Solution:  

The relation between 6 and 222 is  

$222=(6 \times 6 \times 6)+6=216+6=222$

$6 : 222=6 :\left[(6)^{3}+6\right]$

$7 : X=7 :\left[(7)^{3}+7\right]=7 :[(7 \times 7 \times 7)+7]=7 :(343+7)=7 : 350$

The value of X is 350.