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47 isadded to the product of 71 and an unknown number. The new number is divisible by 7 giving the quotient 98. The unknown number is a multiple of

A) 2
B) 5
C) 7
D) 3

Correct Answer:




D) 3

Description for Correct answer:
Let unknown no = a

According to question

\( \Large \frac{(71 \times a)+47}{7}=98 \)

\( \Large 71a+47 = 686 \)

\( \Large 71a=639 \)

\( \Large a=9 \)

Check options

It is multiple of '3'

Part of solved Number series questions and answers : >> Aptitude >> Number series

Comments

Similar Questions

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