What comes next: 3, 5, 9, 17, 33, ?

Type:Math
Reveal answer

The answer is

65

Answer guide

Why this answer works

Read the explanation

Each number is doubled and then 1 is subtracted: 33 × 2 - 1 = 65.

#mathType: Math#number pattern#teens and adults

Keep guessing

Related riddles

Random riddle

One brick weighs 1 kg plus half a brick. How much does one brick weigh?

Type:Math
Reveal answer

The answer is

2 kg

Hints and details

You have 8 coins made of 10p and 20p coins. The total is £1.20. How many 20p coins are there?

Type:Math
Reveal answer

The answer is

4

Hints and details

A parent is 36 and a child is 9. In how many years will the parent be three times the child's age?

Type:Math
Reveal answer

The answer is

4.5 years

Hints and details