Others Maths Puzzle Numerical Ability

Which number should replace both the question marks in the following equation?
x/84 = 189/x

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Others Other Question
The following table shows the production and sales of cars of MVL in the last 6 months of 2006. MVL has an opening stock of 2550 cars on july 1st

Month --------- Production ---- sales
JULY --------- 18750 --------- 19150
AUGust -------- 16450 --------- 17100
SEPTEMBER ----- 18050 --------- 17500
OCTOBER ------ 19200 --------- 18800
November ------ 21600 --------- 22000
December ------ 16500 --------- 17000


NOTE:Opening Stock+Production-Sales= Closing Stock

1. What was the closing stock of cars in December?
a) 0
b) 600
c) 1550
d) 2150

2. For which two months closing stock was same
a) July & November
b) July and october
C) August &December
D) September & November Q. 4 people A,B,C and D are practicing target shooting at 60 glass bottels kept in a row on a table.Whenever a bullet hits a bottle,it is shattered to bit,and does not remain standing any longer.A person is awarded 1 point for every bottels he hits,and 0 points for every missed shot.Assume that all four person fire simultaneously.and that no two hit the same bottle at same time.What should their individual total scor be,after all bottles have been hit,such that the product of their score is maximum?

Option_ (1) 16,14,20,10
(2) 12,15,16,17
(3) 20,21,10,9
(4) None of These