Question 348348
(1)/(t)+(1)/(2t)=(1)/(5)
(1*2+1)/2T=1/5
3/2T=1/5 CROSS MULTIPLY
2T=3*5
2T=15
T=15/2
T=7.5 ANS.
PROOF:
1/7.5+1/2*7.5=1/5
1/7.5+1/15=1/5
(2+1)/15=1/5
3/15=1/5
1/5=1/5