Not sure if this will help but - see the Article from Wikipedia in the attached link. There are various 'conversion tables' in there which might solve your question.
If 2 taps fill 2/5 of the tank in 20 minutes then each tap fills 1/5 of the tank in that time. 3/5 of the tank is still to be filled. One tap therefore takes 3/5÷ 1/5 x 20 = 60 minutes = 1 hour to fill the rest of the tank.
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Size small (size 4-6). You see, the size is the age. If you're 11 years old, then your size is supposed to be a kids size large (10-12). If you're 5years old, then you're supposed to be a kids size small (5-6). D'ya get what I'm sayin'?
60inches
Shoe size doesn't really matter on how tall you are going to be. I'm 13, 5 foot 6, and have a size 14 shoe.
The recommended drill size for a 12 screw is 5/32 inches.
4.3 is best or a 4.2 but use pleny of oil
The recommended 5 drill bit size for drilling holes in metal is 0.2055 inches in diameter.
The recommended drill bit size for a 5/16 inch screw is 1/8 inch.
The equivalent size of a 5/16 drill bit in metric measurements is approximately 7.9375 millimeters.
The equivalent size of a 5/32 drill bit in the metric measurement system is approximately 3.97 millimeters.
A 4 mm drill bit is equivalent to 5/32 inch.
Not unless it was reasonably loose. Usually when faced with this, I drill into the bolt with a very hard drill bit a tiny bit thinner than the bolt - ie if it's a 3/8 bolt, I drill in first with a 1/8 drill to create a guide hole, then after with a 5/16 drill to cut right through, yet not harm the threads. You have to be very careful to stick to an exactly straight course. After the hole is cleared, I pull the threads left from the bolt out as far as I can, then use a 'clearance' tap of bolt size to re-tap the hole.
An 'O' drill bit is a decimal size, 0.3160 inch, which is between 5/16 and 21/64 on the fractional inch scale.
The recommended size for a drill bit to use with a 5.5 mm screw is typically 5 mm.
I use 1/4 drill bit for a 5/16 lag screw in most materials.
I would use a 5/8 drill bit which is almost exactly 16mm.