self Maths Puzzle

If (sin theta + cos theta)/(sin theta - cos theta)=7, then the value of tan theta is equal to :
(A) 4/3
(B) 5/3

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self Other Question

If 2a-b=4 and 3b+2c =44, then the value of a+b+c is:
(A) 22
(B) 24
A sum of Rs 350 made up of 110 coins which are either Rs 1 or Rs 5 denomination. How many coins are of Rs 5?