Honey earned $80 a day. Every day, she spent part of her pay and saved the rest. After 20 days of work, she spent $1360. How much did Honey save in 20 days?

Honey earned $80 a day. Every day, she spent part of her pay and saved the rest. After 20 days of work, she spent $1360. How much did Honey save in 20 days?

Honey earned 20 x $80 = $

<<20*80=1600>>1600 for 20 days of work. Therefore, Honey saved $1600 - $1360 = $<<1600-1360=240>>240 in 20 days. #### 240 Sam bought a heavy safe with a combination lock. There were four rows with twenty gold bars per row arranged in the safe. If each gold bar is worth $20000, calculate the total worth of the gold bars in the safe. If there were four rows of twenty gold bars arranged in the safe, the total number of bars in the safe is 4*20 = <<4*20=80>>80 bars. Since each gold bar is worth $20000, the 80 bars are worth 80*$20000 = $<<80*20000=1600000>>1,600,000 #### 1600000 Karen had the giant box of crayons, containing twice as many crayons as were in Beatrice's box. But Beatrice's box contained twice as many crayons as were in Gilbert's box of crayons. And Gilbert had four times as many crayons as were in Judah's box of crayons. If Karen's box contained 128 crayons, how many crayons were in Judah's box? If Karen's 128 crayons were twice as many as were in Beatrice's box, there were 128/2=<<128/2=64>>64 crayons in Beatrice's box. And since Beatrice's box contained twice as many crayons as were in Gilbert's box of crayons, then Gilbert had 64/2=<<64/2=32>>32 crayons. And since Gilbert had four times as many crayons as Judah, then Judah had 32/4=<<32/4=8>>8 crayons. #### 8 Dan spent an hour doing 400 work tasks at $0.25 each. Then Dan spent an hour doing 5 work tasks at $2.00 each. How much more did Dan make doing the good work compared to the lower-paid work? Dan spent an hour doing 400 tasks * $.25 = $100. Dan spent an hour doing 5 tasks * $2.00 each = $<<5*2=10.00>>10.00. Dan made $100 - $10 = $<<100-10=90.00>>90.00 per hour more doing the higher paid work. #### 90 John takes a 10-minute shower every other day for 4 weeks. If his shower uses 2 gallons of water per minute. How much water does he use in those 4 weeks? There are 4*7=<<4*7=28>>28 days in those 4 weeks That means he takes 28/2=<<28/2=14>>14 showers So he takes a total of 14*10=<<14*10=140>>140 minutes of showers So he uses 2*140=<<2*140=280>>280 gallons of water #### 280 There are twice as many surfers on Malibu beach as in Santa Monica beach. If there are 20 surfers in Santa Monica, calculate the total number of surfers on the two beaches. If there are 20 surfers at Santa Monica, Malibu beach has twice as many surfers as Santa Monica has 2*20 = 40 surfers. Together, the two beaches have a total of 40+20 = <<40+20=60>>60 surfers. #### 60 Olga has an aquarium with fish in 5 different colors. There are 12 yellow ones, half as many blue ones, and twice as many green ones as yellow ones. How many fish does Olga have in her aquarium? Olga has half as many blue fish as yellow ones, which means 12 * 0.5 = <<12*0.5=6>>6 blue fish. Green fish are twice as many as yellow ones, so in total there are 12 * 2 = <<12*2=24>>24 green fish. So all the fish sum up to 12 + 6 + 24 = <<12+6+24=42>>42. #### 42 Pete walks backwards three times faster than Susan walks forwards, and Tracy does one-handed cartwheels twice as fast as Susan walks forwards. But Pete can walk on his hands only one quarter the speed that Tracy can do cartwheels. If Pete walks on his hands at 2 miles per hour, how fast can Pete walk backwards, in miles per hour? If Pete walks on hands at 1/4 what Tracy can do 1-handed cartwheels, then Tracy can do 1-handed cartwheels at 2*4=8 miles per hour. Since Tracy does 1-handed cartwheels twice the rate of Susan's forward walking, then Susan walks at 8/2=<<8/2=4>>4 miles per hour. Pete walks backwards 3x faster than Susan walks forward, and thus Pete walks backwards at 4*3=12 miles per hour. #### 12 James spends 3 hours vacuuming and 3 times as long on the rest of his chores. How long does he spend on his chores? He spends 3*3=<<3*3=9>>9 hours on his other chores So he spends 3+9=<<3+9=12>>12 hours on chores #### 12 Gary has 30 grams of gold that cost $15 per gram. Anna has 50 grams of gold for the cost of $20 per gram. How much is the cost of their gold combined? The cost of Gary’s gold is 30 * $15 = $<<30*15=450>>450. The cost of Anna’s gold is 50 * $20 = $<<50*20=1000>>1000. The total cost of their gold is $450 + $1000 = $<<450+1000=1450>>1450. #### 1450