Explanation

Explanation

Rate = 1350 dishes per 1 hour = 60 minutes

In 16 minutes:

Dishes = 1350 × (16 / 60)

= 1350 × 0.2666...

= 360

Last verified on 06-08-2026

Explanation

Sales tax = 0% × Rs. 50,000 = Rs. 0.

Therefore, no sales tax is charged when the tax rate is 0%.

Last verified on 06-08-2026

Explanation

Girls participating = 1/5 of 200 = 200 / 5 = 40

Boys participating = 1/8 of 160 = 160 / 8 = 20

Total students who participated = 40 + 20 = 60

Last verified on 06-08-2026

Explanation

Area of circle = πr²  

Circumference = 2πr

Given: Area = 275 m²

1. Find radius r:

πr² = 275

r² = 275 / π = 275 / 3.1416 ≈ 87.54

r = √87.54 ≈ 9.356 m

2. Find circumference:

C = 2πr = 2 × 3.1416 × 9.356 ≈ 58.78 m

Last verified on 05-08-2026

Explanation

Series pattern is =6+9+12+15

6+6=12 is missing 

Explanation

Let the three consecutive numbers be: 

n, n+1, n+2

Sum = 78

n + (n+1) + (n+2) = 78

3n + 3 = 78

3n = 75

n = 25

So the numbers are: 25, 26, 27

The greatest number = 27

Last verified on 05-08-2026

Explanation

We can use tan to find the height.

Given:

Person's height = 1.6 m 

Distance from tower = 20 m

Angle of elevation = 45°

Let h = height of tower above the person's eye level.

In the right triangle:

tan(45°) = opposite / adjacent = h / 20

We know tan(45°) = 1

So: 

1 = h / 20

h = 20 m

This is the height from eye level to top of tower.

Total height of tower = h + person's height

= 20 m + 1.6 m 

= 21.6 m

Last verified on 05-08-2026

Explanation

Perimeter of rectangle = 2 × (Length + Width)

Given: 

Length = 58.7 

Width = 23.2

Perimeter = 2 × (58.7 + 23.2)

= 2 × 81.9

= 163.8

Last verified on 05-08-2026

Explanation

Use the work formula: 

Workers × Days × Hours per day / Units = constant

Case 1: 

30 workers, 20 days, 8 hours/day, 3000 units

Case 2: 

32 workers, D days, 10 hours/day, 2000 units

So,

(30 × 20 × 8) / 3000 = (32 × D × 10) / 2000

4800 / 3000 = 320D / 2000

1.6 = 0.16D

D = 1.6 / 0.16 = 10

Last verified on 05-08-2026