The least whole number which when subtracted from both the terms of the ratio 6:7 gives a ratio less then 16:21 is :
Solution
Correct Answer: Option B
Let the whole number is X. Now, according to question, (6 -X) /(7 -X) < 16/21. 21 *(6 -X) < 16 *(7 -X) 126 - 21X < 112 - 16X 126 - 112 < - 16X + 21X 14 < 5X 5X > 14 X > 2.8 So, Least such whole number would be 3.
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