Solve the following:
(a)
Vipin scored twice as many marks as scored by Ravi. Together they got one short
of century. How many marks did each one score?
when 40 is added to
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Answer:
1/2 × 8/1 = (1 × 8)/(2 × 1) = 8/2 = 4 (ii) 1/5 of 20 = 1/5 × 20 = 1/5 × 20/1 = 20/5 = 4 (iii) 2/5 of 25 = 2/5 × 25 = 2/5 × 25/1 = (2 × 25)/(5 × 1) = 50/5 = 10 (iv) 2/3 of 5/7
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correct answer is 33 , 66
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