J is 25% less than P and 20% less than T. T is t% less than P. What is the value of t?
Choose one:
A) 93.5
B) 90
C) 6.75
D) 6.25
E) 2

Rationale: usually we can solve every question of this type by choosing appropriate value of the variable and deriving the value of other related variables . let , p = 400 then j = ( 75 / 100 ) * 400 = 300 also j = ( 80 / 100 ) * t i . e . t = 300 * 100 / 80 = 375 and t = [ 1 - ( t / 100 ) ] * p i . e . 100 - t = 100 * t / p = 100 * 375 / 400 = 93.75 i . e . t = 6.25 answer : option d
Answer: D