Price of coal is up by 40%. Mr Amir must reduce the consumption by what percentage to remain at par. (source: Simplified Mathematics)
a) 60
b) 66
c) 2084
d) 60
e) 71.4
a) 60
b) 66
c) 2084
d) 60
e) 71.4
Lets think initially the Price of Coal is 100$/Ton and Mr Amir uses 10Tonnes. Hence total value (initially) is 100x10 = 1000$shaifali84 wrote:Price of coal is up by 40%. Mr Amir must reduce the consumption by what percentage to remain at par. (source: Simplified Mathematics)
a) 60
b) 66
c) 2084
d) 60
e) 71.4
Now the Price of Coal is 140$/Ton and to remain at par, lets assume the consumption is "c".
Hence,
1000 = 140xc
100/14 = c
c=71.4.
Hence the is the reduced consumption percentage will be (100-71.4) = 38.6%. But I don't see this in the options.
