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In a bag, white marbles and red marbles are in the ratio of 3 : 5. If the number of red marbles are 150, then how many white marbles are there ? |
90 60 30 120 |
90 |
White : Red 3 : 5 ⇒ No. of Red marbles = 150 ⇒ 5 units = 150 ⇒ 1 unit = 30 ⇒ No. of white marbles = 3 x 30 = 90. |
