181. A cyclist takes 2 minutes and 13 seconds for every full lap of a circuit.
Answer the following question in 10 seconds or less: How long will it take him to do 60 laps?

Two hours and thirteen minutes. When you multiply by 60, the amount of minutes become hours and the amount of seconds become minutes.

182. Find a number whose double exceeds its quarter by 7?

4. The double is 8 and the quarter is 1; therefore the double (8) - the quarter (1) = 7.

183. One hose fills a swimming pool six times faster than a second hose.
Together they can fill the poll in five hours. How long would it take the slower hose to fill the pool by itself?

35 hours. If one hose is 6 times as fast as another, then you can think of both hoses together as 7 units of water flow.....7 units that fill a pool in 5 hours. Since the slower hose is 1/7 of both hoses together, then it would take 35 hours to fill the pool by itself. 7 units x 5 hours = 1 unit x 35 hours.

184. A mixed packet of nuts contains 1 pound of walnuts and 2 pounds of Brazil
nuts. It costs exactly $2. A packet containing 4 pounds of filberts and 1 pound of walnuts costs $3. And for only $1.50, you can buy a mixed
packet of 3 pounds of almonds, 1 pound of walnuts, and 1 pound of filberts. How much should you pay for a mixture of 1 pound of each of the
four kinds of nuts?

It is impossible to work out the cost per pound of each of the different nuts. However, the cost of various combinations can be worked out. If you combine 1- 1/2 packets of the first kind ( $3 ) with 1/2 packet of the second kind ( $1.50 ) and all of the third packet ( $1.50 ), you get 3 pounds of each for $6. A mixture of 1 pound of each therefore, should cost you $2.

185. We know that 5 squared = 25. Can you use the numbers 2 and 5 once and
only once and any math sign or symbol to arrive at 25 a different way?

Here is one way 5 ÷ .2 = 25.

186. What are the next 2 numbers in this series:

1 4
13 28
49 _ _

76 and 109, the difference between successive numbers increasing by 6 each time.

187. Two slow moving trains are traveling towards each other. One train runs
from point A to point B at 19 miles an hour. The other train runs from point B to point A at 21 miles per hour. One hour before the trains pass
each other, how far apart are they?

188. If it takes 6 florist's assistants 3 hours to pack 12 boxes of flowers, how
fast can sixteen assistants pack 16 boxes?

Since each assistant takes 1-1/2 hours per box, It will take an hour and a half.

189. What is 1/2 of 1/4 of 2/9 of 3/7 of 84?

1. 3/7 of 84 = 36; 2/9 of 36 = 8; 1/4 of 8 = 2; 1/2 of 2 = 1.

190. A recycling factory makes its own paper cups for
canteen use. It can make one new cup from nine used ones. If it has 515 used cups how many can it possibly make in total?

The maximum possible is 63.