Question
What value should come in place of the question mark (?)
in the following question? (1/3) + (2/5) + (3/4) + (11/10) = 3 – (?/12)Solution
(1/3) + (2/5) + (3/4) + (11/10) = 3 – (?/12) (1 × 20 + 2 × 12 + 3 × 15 + 11 × 6) ÷ 60 = 3 – (?/12) (20 + 24 + 45 + 66) ÷ 60 = (36 - ?)/12 155/60 = (36 - ?)/12 36 - ? = (155/60) × 12 31 = 36 - ? ? = 5
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