97ans - (N+x)(N+x-1) = t+46 trail and error method x=2 and...

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Sheet1 Page 1 1.66 sec. 2. x x x x-4 x-4 x-4 3x-12 = x x= 6 ans is 18 3. 180 + (x/10) = x x = 20 ans is 180+20=200 miles 4. ---- 5. a had 39, b had 21, c had 12 6. Ans. let N(N-1) = t
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Unformatted text preview: (N+x)(N+x-1) = t+46 trail and error method x=2 and N=11 4 marks 7. ---8. ans DL 9.(i) (ans. d said this) (ii) ( b ) (iii) ( e ) (iv) ( c )...
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