Mental Math

Mental Math Sharpen your mind with fun math challenges, tips, and brain exercises! 🧠🔢

05/16/2025

Bought 5 pens for $40 and sold them all for $10 each.
What’s the profit %?

A) 10%
B) 15%
C) 20%
D) 25%

05/16/2025

A shopkeeper sells a chair for $120 and neither gains nor loses.
What was the cost price?

A) $110
B) $100
C) $120
D) $115

05/16/2025

A pen is sold for $45, making a 25% profit.
What was the cost price?

A) $35
B) $36
C) $34
D) $33.75

05/16/2025

A book was bought for $60 and sold at a 10% loss.
What was the selling price?

A) $54
B) $50
C) $56
D) $58

05/16/2025

A man buys a watch for $80 and sells it for $100.
What is the profit %?

A) 20%
B) 25%
C) 30%
D) 15%

05/16/2025

Find the missing number:
3, 6, 18, 72, ?

A) 144
B) 288
C) 360
D) 216

Solve Math
05/16/2025

Solve Math

Simplify:(16 ÷ 4) + (3² - 4)
05/11/2025

Simplify:
(16 ÷ 4) + (3² - 4)

05/10/2025

You sell a bike for $1,200. It cost you $1,500.
👉 What is your percentage loss?

05/10/2025

You buy a chair for $200 and sell it for $240, claiming a 25% profit.
👉 Is this claim true?

A) Yes
B) No, actual profit is 20%
C) No, actual profit is 15%
D) No, actual profit is 10%

05/10/2025

A man buys a laptop for $500 and sells it for $550.
He later buys it again for $480 and sells it for $520.
👉 Total profit or loss?

05/10/2025

A shopkeeper marks up a product by 25% on its cost price of $80.
He then gives a 10% discount on the marked price.
👉 What is the selling price?

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