Explanation

Sets that have the same number of elements (cardinality) are called equivalent sets.

They may have different elements but the same total count.

Explanation

Explanation

Explanation

1KG = 1000Grams

3.5KG=1000X3.5

       =3500

      =70/3500

     = 2%

RK271222

Explanation

1 acre = 100 cents  

1 acre = 43,560 square feet  

So,  

1 cent = 43,560 sq ft ÷ 100 = 435.6 sq ft

Explanation

8.0560 has 5 significant figures: 8, 0, 5, 6, and the final 0 (after decimal) is also significant.

Trailing zeros after a decimal point are always significant.

Explanation

Fare for 34 km = Rs. 1190

Fare per km = 1190 / 34 = Rs. 35

Now, fare for 48 km:

Fare = 48 km * Rs. 35/km = Rs. 1680

Explanation

B - A represents the set of elements that are in B but not in A.

The correct notation is: {x | x ∈ B and x ∉ A}

Explanation

We want the least number of stickers that can be equally divided among 4, 10, and 16 children.

This means we want the Least Common Multiple (LCM) of 4, 10, and 16.

The prime factorizations are:

4 = 2²

10 = 2 × 5

16 = 2⁴

The LCM is the product of the highest powers of all prime factors:

LCM = 2⁴ × 5 = 16 × 5 = 80

Explanation

The complement of set A (written as A′ or U – A) includes all elements in the universal set U that are not in A.

Hence, it's the difference between U and A.

Explanation

Direct Proportion:

When a decrease in one quantity causes a proportional decrease in another, they are directly related.

Example: If you reduce the number of workers, the amount of work done decreases proportionally.

Rate: Measures change over time (e.g., speed).

Ratio: Compares quantities without implying proportionality.

Inverse Proportion: Increase in one causes decrease in the other (e.g., speed vs. time).