Explanation

One minute: 60 seconds

One hour: 60 minutes

One hour: 3600 seconds

0.5 hour: 1800 seconds

Explanation

4 TESTS AVERAGE IS 60. SO IF WE SUM THE TOTAL VALUE THEN

60*4=240

5 TESTS AVERAGE IS 58.SO IF WE SUM THE TOTAL VALUE THEN

58*5=290.

THEN TAKE THE DIFFERENCE OF SUM YOU GET

290-240= 50.

Explanation

Explanation

The answer after we divide one number by another. dividend ÷ divisor = quotient.

Example: in 12 ÷ 3 = 4, 4 is the quotient.

Explanation

Explanation

m = 69 ÷ 23 = 3  

Explanation

A composite number is a natural number greater than 1 that has more than two positive divisors.

Both 6 and 4 are composite numbers, as they can be divided by 1, themselves, and other numbers.

However, 2 is a prime number because it only has two divisors: 1 and itself.

Explanation

"X" represents 10 and "V" represents 5.

So together they form 15 (10 + 5 = XV).

Roman numerals for the given numbers:

• 1 - I
• 5 - V
• 10 - X
• 50 - L
• 100 - C
• 500 - D
• 1000 - M

Explanation

Disjoint sets have no elements in common.

Therefore, their intersection is the null set (∅).

Explanation

= - 4 x - 4 x - 4 + 4 x 4

= - 64 + 16

= - 48