Level 2
Janice mistakenly multiplied 27 by 100 instead of multiplying a given number by 100. If the result was 4500 less than the correct answer, what was the given number?

Level 3
In October, the ratio of boys and girls in a school's rifle club was 4 : 7. In November, 68 new members joined the club. As a result, the ratio of boys to girls in the club became 4 : 3. There were 64 boys in the club in October. How many of the new members were girls?

Level 3
The number of red grapes is the same as the number of green grapes in a bag. After removing ¹₄ of the grapes, there were 36 red grapes and 54 green grapes left in the bag. Then another 20 red grapes and 20 green grapes were removed and there were ⁵₁₂ of the grapes left in the end. How many red grapes were removed altogether?

Level 3
Reena bought some fruits. She spent $10 more than ²₃ of her money on some pears. She then spent $8 more than 20% of the remaining money on some pineapples. Given that she had $16 left,

1. how much did Reena have at first?
2. how many kilograms of pineapples did she buy if they cost $2 per kg?

Level 2
If you multiply a number by 8, then add 13, then subtract 9, you will get 100. What is the number?

Level 3
The total volume of water in Watering Can A, Watering Can B and Watering Can C was 205 mℓ. I poured out half the volume of water from Watering Can A, doubled the amount of water in Watering Can B and added 55 mℓ of water into Watering Can C. The ratio of the volume of water in Watering Can A to Watering Can B to Watering Can C is now 5 : 4 : 8. Find the total volume of water in the three watering cans now.

Level 3
Lisa and Gillian had a total of 64 beads. Lisa gave ¹₃ of her beads to Gillian. In return, Gillian gave ¹₅ of the total number of beads that she had to Lisa. In the end, each girl had the same number of beads. How many beads did Gillian have at first?

Level 3
Hazel had $300 more than Wendy. Hazel gave ³₅ of her money to Wendy. Wendy then gave 25% of her money to Hazel. In the end, Wendy had $186 more than Hazel. How much did Hazel have at first?

Level 3
Kate had $280 more than Natalie. Kate gave ³₅ of her money to Natalie. Natalie then gave 25% of her money to Kate. In the end, Kate had $146 less than Natalie. How much did Kate have at first?

Level 2
Ben thought of a fraction. He multiplied the fraction by 25. then he added 8 to the answer. He got 23 as the answer. What is the fraction that Ben thought of? Express the answer in the simplest form.