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f 7a+4 x 5b = 1715 ab =
(a) 0 (b) 2 (c) -1 (d)4

Read Solution (Total 3)

a=245,b=0.so ans ab=0.
12 years agoHelpfull: Yes(11) No(2)

Assume a or b=0.then only we get ans.otherwise impossible
12 years agoHelpfull: Yes(3) No(0)
ab= -1
because a= -1 putt b=1
so that equ solved
7^3*5^1=1715
8 years agoHelpfull: Yes(0) No(0)

TCS Other Question

how many workers does factory W employ? consider the following two statmentsto get the answer.
(x)220 workers at W install batteries,and 300 workers knit socks.
(y)Every worker of W either installs batteries or knits socks,or both.
a]Stmt x alone is enough to get the ans
b]Stmt X and Y are together not enough to get the answer,and additional data is needed
c] Stmt y alone is enough to get the answer
d]Both statmets X and Y are needed to get the answer kelly lost 18% by selling a bicycle for $1230 what percentage shall she gain or loss by selling it for rs.1600?