Explanation

Teacher, Professor, Principal, and Headmaster all related to teach

Student is learner

Explanation

in 30 Days, 20 pencils lost

and 60 days, 40  Pencil lost

********

60 x 2/3

120/3

Ans=40

Explanation

A semicircle is half of a circle.

A central angle which is subtended by a semicircle has a measure of 180°.

A circle is associated with a complete rotation, which is 360°.

A semi-circle is associated with half of a rotation which is 180°.

If an angle is inscribed in a semicircle, it will be half the measure of a semicircle (180 degrees), therefore measuring 90 degrees.

Explanation

Shakib has rupees 75

he gives 20% of its as Alam 

the remaining amount is= 75x20/100

                                        = 15

                                        = 75-15 = 60

Explanation

We know that, (a+b)² = a² + b² + 2ab

Now, we have,

(a+b)² + (a-b)²

= (a² + b² + 2ab) + [a² + (-b)² + 2a(-b)]

= a² + b² + 2ab + a² + b² - 2ab

= 2a² + 2b²

= 2(a²+b²)

Thus, we get,

(a+b)² + (a-b)² =     2(a²+b²).

Explanation

Greater than or equal to is represented by the symbol    "≥".

Explanation

Explanation

Explanation

8 hours of work, Ali earns Rs 120

1 hour of work, Ali earns Rs 15

22 hours of work, Ali earns Rs = 15 x 22 =330

Explanation

Write an Application to your Principal on remission (reduction) of the fine.

Total 7 marks

ICT Police paper 2019