Explanation

Highest = $45

Lowest = $26

Range = 45 - 26 = 19

Last verified on 09-02-2026

Explanation

Total distance = 60 + 40 = 100 km

Total time = 50 + 25 = 75 minutes = 75/60 hours = 1.25 hours

Average speed = Total distance / Total time

= 100 km / 1.25 hours

= 80 km/h

Last verified on 09-02-2026

Explanation

Let Farha's age = x

Sanam's age = x + 13

After 3 years:

Farha = x+3

Sanam = x+13+3 = x+16

Sum = (x+3) + (x+16) = 33

2x + 19 = 33

2x = 14

x = 7

Farha = 7

Sanam = 7+13 = 20

Sanam's age after 3 years = 20 + 3 = 23

Last verified on 09-02-2026

Explanation

20 km → 5 cm

80 km → ?

Scale factor: 80/20 = 4 times

So, 5 cm × 4 = 20 cm

Last verified on 09-02-2026

Explanation

Principal = 200,000

Rate = 5% per year

Time = 2 years

Simple Interest = (P × R × T)/100

= (200,000 × 5 × 2)/100

= 20,000

Total Amount = Principal + Interest

= 200,000 + 20,000

= 220,000

Last verified on 09-02-2026

Explanation

Area = 72x² - 18

= 18(4x² - 1)

= 18(2x+1)(2x-1)

Area of triangle = (1/2) × base × height

Assume base = length

18(2x+1)(2x-1) = (1/2) × (6x-3) × height

= (1/2) × 3(2x-1) × height

=> height = 12(2x+1)

= 6x - 3

Last verified on 09-02-2026

Explanation

Area = side²

625 = side²

side = √625

side = 25 cm

Last verified on 09-02-2026

Explanation

Arithmetic sequence formula:

• aₙ = nth term
• a₁ = first term
• n = term number
• d = common difference

Formula: aₙ = a₁ + (n - 1)d

Last verified on 09-02-2026

Explanation

The associative property of the union states that:

A ∪ (B ∪ C) = (A ∪ B) ∪ C

This means that the order in which we perform the union operation does not change the result.

Last verified on 09-02-2026

Explanation

The property that states:

a + b = b + a

It is known as the Commutative property of addition.

It indicates that the order of the numbers being added does not change the result.

Last verified on 09-02-2026