Practice NET Mathematics questions with answers and explanations.
Choose an option to check your answer.
Let the number be x, so 0.40x = 72.
Dividing by 0.40 gives x = 180.
Choose an option to check your answer.
Percent means per hundred.
Thus, 3.5% = 3.5 ÷ 100 = 0.035.
Choose an option to check your answer.
The required percentage is 45/250 × 100.
This equals 18%.
Choose an option to check your answer.
The score fraction is 42/50.
Multiplying by 100 gives 84%.
Choose an option to check your answer.
Starting from 100, a 10% increase gives 110.
A 10% decrease from 110 gives 99, which is 1% lower.
Choose an option to check your answer.
After a 20% increase, the quantity becomes 120% of the original.
The required reduction is 20/120 × 100 = 16⅔%.
Choose an option to check your answer.
The greatest common divisor of 18 and 24 is 6.
Dividing both terms by 6 gives 3/4.
Choose an option to check your answer.
Convert 2/3 to sixths: 2/3 = 4/6.
Then 4/6 + 1/6 = 5/6.
Choose an option to check your answer.
Convert 1/4 to 2/8.
Then 7/8 - 2/8 = 5/8.
Choose an option to check your answer.
Multiply numerators and denominators, then simplify.
(3 × 10)/(5 × 9) = 30/45 = 2/3.
Choose an option to check your answer.
Dividing by a fraction means multiplying by its reciprocal.
Thus, 4/7 × 3/2 = 12/14 = 6/7.
Choose an option to check your answer.
The decimal 0.375 equals 375/1000.
Dividing numerator and denominator by 125 gives 3/8.
