أسئلة رياضية متنوعة

If there is a two-digit number, the sum of its digits equals 12, and if the digits are reversed, the new number is 18 less than the original number. What is the number?

• 26

• 39

• 52

• 93

A number, when divided by 3 and then added to 20, results in 50. What is the number?

• 90

• 36

• 47

• 19

A man bought 5 notebooks and 3 pens for 47 riyals. If the price of a pen is 5 riyals, what is the price of one notebook?

• 9

• 7

• 3

• 4

How many times does the number 3 appear between the numbers 1 and 100?

• 20

• 90

• 82

• 65

Find the number that, when you add its quarter, fifth, and sixth, results in 190?

• 120

• 99

• 76

• 43

A train 200 meters long is traveling at a speed of 60 km/h. How many seconds does it take to cross a tunnel 300 meters long?

• 90 seconds

• 30 seconds

• 50 seconds

• 20 seconds