The least whole number which when subtracted from both the terms of the ratio 6 : 7 to give a raƟo
less than 16 : 21, is  Choose one:
A) 3	B) 4	C) 5	D) 6	E) 7
Explanation:   Let x is subtracted.   Then,   (6−x)(7−x)&lt;162121(6�x)&lt;16(7�x)=&gt;5x&gt;14=x&gt;2.8   Least such number is 3   3nswer: 3
<result>A</result>
The least whole number which when subtracted from both the terms of the ratio 6 : 7 to give a raƟo
less than 16 : 21, is