Bài toán IQ (phiên bản: Tiếng Anh)

How many round numbers are there from 51 082 to 83 321?

• 35

• 33

• 34

• 32

Minh divided 31 pens into 4 boxes of blue, red, purple, and yellow. Know that the red box has fewer pens than the other boxes and each box has more than 6 pens. How many pens does the red box contain?

• 7 pieces

• 8 pieces

• 9 pieces

• 10 pieces

One store has 180 bags of rice. On day 1, the store sold 22 bags of rice. The second day sold 2 times the number of bags of rice sold on day 1. The third day sold 2 times the number of bags of rice sold on day 2. After 3 days, how many bags of rice did the store have left?

• 36 bags of rice

• 34 bags of rice

• 26 bags of rice

• 24 bags of

How many natural numbers satisfy: 100 < 9 × x < 200?

• 11 numbers

• 9 numbers

• 10 numbers

• 8 numbers

Is the smallest n-digit number even or odd?

(Even numbers fill in 0, odd numbers fill in 1)

Answer explanation

This is a trick question

Given a line segment AB = 20cm, M is the point between A and B. Let I be the midpoint of AM, K be the midpoint of BM. Calculate the length of line segment IK. Answer: IK = ... cm.

The side cube <= is made up of how many small cubes?

• 27

• 18

• 9

• 21

Know that: x: 5 = 8 (remainder 4). Ask x: How much is the remainder?

• remainder 5

• remainder 6

• remainder 3

• remainder 4

How many 4-digit numbers are there whose sum of digits is 2?

• 3 numbers

• 4 numbers

• 6 numbers

• 8 numbers

Calculate the area of machine parts <=?

Area is: ......mm2