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A d d\ 7/9 \ a n d\ 4...

`A d d\ 7/9 \ a n d\ 4`

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A d d7/9a n d\ 4

If \ ^(k+5)P_(k+1)=(11(k-1))/2dot\ ^(k+3)P_(k\ )P_k then the values of k are 7\ a n d\ 11 b. 6\ a n d\ 7 c. 2\ a n d\ 11 d. 2\ a n d\ 6

A d d7/9a n d(-12)/9

A d d7/9a n d(-12)/9

In /_\ A B C ,\ D ,\ E\ a n d\ F are, respectively, the mid-points of B C ,\ C A\ a n d\ A B . If the lengths of side A B ,\ B C\ a n d\ C A are 7cm, 8cm, and 9cm, respectively, find the perimeter of /_\ D E F.

A d d(-5)/9\ a n d(-17)/9

A d d(-5)/9\ a n d(-17)/9

Add: 4/5\ a n d\ 7/(15)

A ,\ B\ a n d\ C can reap a field in 15 3/4 days : B ,\ C\ a n d\ D in 14 days: C ,\ D\ a n d\ A in 18 days: D ,\ A\ a n d\ B in 21 days. In what time can A ,\ B ,\ C\ a n d\ D together reap it?

A d d4/(-11)\ a n d7/(11)