Question

1,4,5,7 is it direct proportion

Answer 1

Answer:

answer for the given problem is given

Answer 2

Answer:

1,4,5,7 ARE GIVEN NUMBERS.

IF THESE ARE DIRECTLY PROPORTIONAL THEN PRODUCT OF THEIR MEANS =PRODUCT OF EXTREMES.

a=1,b=4,c=5,d=7

SO a:b::c:d

THEN ad=bc

LET'S CHECK:

1×7=5×4

=7=20 WHICH IS NOT TRUE SO 1,4,5, 7 ARE NOT DIRECTLY PROPORTIONAL.