Determine the specific group size given the following situation. In a group of 50 kids, 30 are taking basketball and 15 are taking tennis lessons. Of the kids taking basketball or tennis, 12 are taking both lessons. How many are not taking either lesson? For more brain teasers and puzzles, click here.
Category: STEM
Brain teaser: Class size
Determine the total class size given the following situation. For more brain teasers and puzzles, click here.
Math quiz (for kids)
Math quiz: Chance of a promo and raise
What’s your chance of a promotion AND a raise in the next 2 months given the following scenario?
Easy math quiz
2+2 is NOT always 4. Here’s why…
Okay, being a little esoteric here. Sure 2 units added to 2 units (whatever the unit is) will add to 4 units (whatever the unit is). A man with 2 balls arrives and gives you 2 balls. Another man (or woman) with 2 balls give you the 2 balls…you carefully count them and they’re exactly 4 […]
Recall- One of my earlier Windows 3.1 programs
Hello again! So, here’s another of my older software programs I wrote for fun, education. This one’s a “simple” Windows 3.1 program I wrote back in 1995 while learning Windows coding myself (school taught me C, Pascal, COBOL LOL!!). This is a type of a memory game. You have to match at least 2 tiles […]
Throwback to God in ’95
Hello again! I was going through my floppy disks (what’s that?) in my vault and re-discovered many of my older software programs I wrote for fun, education and some were actually sold worldwide (one native DOS program and several Windows applications complete with installation, help and all). This one’s a relatively tiny program that’s big […]