Explanation

Two quantities are in inverse proportion when one increases and the other decreases.

Their product always remains constant.

Common in real-life situations like speed & time.

If one doubles, the other becomes half.

It is also called indirect proportion.

Direct Proportion → Both increase or decrease together.

Last verified on 12-04-2026

Explanation

Each roll has 6 outcomes, so two rolls = 6 × 6 = 36 possible outcomes  

Last verified on 12-04-2026

Explanation

Let Milk = 3k, Wheat = 2k  

Wheat increases by 50%: new Wheat = 2k × 1.5 = 3k  

New ratio Milk : Wheat = 3k : 3k = 1 : 1  

Last verified on 12-04-2026

Explanation

500 minutes = 8 hours 20 minutes  

9:15 am + 8h 20m = 5:35 pm  

Last verified on 12-04-2026

Explanation

Surface area of a cube = 6 × (edge)²  

= 6 × 5² = 6 × 25 = 150  

Last verified on 12-04-2026

Explanation

The pattern: 60, 100, 140... increases by 40 each cabin.  

That’s an arithmetic sequence: a₁ = 60, d = 40  

16th term = 60 + (16-1)×40 = 60 + 600 = 660  

Last verified on 12-04-2026

Explanation

• The in-center is the point where all three internal angle bisectors of a triangle meet.
• It is always located inside the triangle.
• The in-center is the center of the incircle (circle inside the triangle).
• It is equally distant from all sides of the triangle.

Last verified on 12-04-2026

Explanation

Degree = sum of exponents on the variables.  

For 5x²yz: 2 + 1 + 1 = 4  

Last verified on 12-04-2026

Explanation

Let Cost Price = 100  

Marked Price = 100 + 20% = 120  

Discount 15% of 120 = 18, so Selling Price = 120 - 18 = 102  

Gain = 102 - 100 = 2  

Last verified on 12-04-2026

Explanation

• The principal is the original amount of money deposited or borrowed.
• It is the base amount on which interest or profit is calculated.
• This term is commonly used in banking, loans, and investments.
• Without principal, no interest or markup can be calculated.
• It is the starting value in all financial transactions.

Last verified on 12-04-2026