Weight of M, D and I is 74. Sum of D and I is 46 greater than M. I is 60% less than D. What is D's weight.  Answers.
A) 22 B) 10 C) 88 D) 26 E) 18
M + D + I = 74 - - - (1)   (D + I) - M = 46 - - - (2)   I = 410410 D ⇒⇒ 5I = 2D ⇒⇒ I = 2D/5 - - - (3)   Adding (1) and (2) we get 2D + 2I = 120   Substituting the value of I in the above equation,   2D+2(2D5)=1202D+2(2D5)=120   ⇒⇒ 14D = 600   ⇒⇒ D = 300/7 = 42.8   Ans:10
<result>B</result>
Weight of M, D and I is 74. Sum of D and I is 46 greater than M. I is 60% less than D. What is D's weight.