In what proportion must rice at Rs. 3.10 per kg be mixed with rice at Rs. 3.60 per kg so that the mixture be worth Rs. 3.25 per kg?

A.

3 : 7

B.

5 : 3

C.

3 : 5

D.

7 : 3

• D. 7:3
  3.25-3.10=.15
  3.60-3.25=.35
  hence 7:3
• 11 years agoHelpfull: Yes(3) No(0)
• ANS------7:3
  325-310=15
  360-325=35
  35:15=7:3
• 9 years agoHelpfull: Yes(0) No(0)
• 3.10 3.60
  3.25
  0.35 0.15
  7:3
• 8 years agoHelpfull: Yes(0) No(0)
• dearer value - mean value / mean value - cheaper value
  3.60 - 3.25 / 3.25 - 3.10
  0.35 / 0.15
  7 : 3
  Option (D)
• 5 years agoHelpfull: Yes(0) No(0)