Which number will best complete the relationship given below? 4 : 128 :: 6 : ?

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Which number will best complete the relationship given below? 4 : 128 :: 6 : ?

A192

B195

C194

D193

Answer:

A. 192

Read Explanation:

4th proportion eqn is

a : b : : c : d

then $d=\frac{b\times c}{a}$

= $\frac{128\times6}{4}=192$

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Select the set in which the numbers are related in the same way as are the numbers of the following sets. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13-Operations on 13 such as adding subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 are not allowed.) (24, 12, 72) (15, 16, 60)